KR101878184B1 - Method for detecting jagging area and jagging area detection device - Google Patents

Abstract

The present invention relates to a jigging area detecting method and an apparatus for detecting a jigging area in which a jigging area can be accurately found, and more particularly to a jigging area detecting method and an apparatus for detecting a jigging area in which i * j (i and j are natural numbers) Converting the color coordinates of each of the image data to generate i * j color conversion data; One of the i * j unit pixels is defined as a center unit pixel, and k (k is a natural number smaller than i or j) surrounding the center unit pixel are defined as peripheral unit pixels Defining step B; And peripheral unit pixels positioned at left and right sides of the center unit pixel, left and right peripheral unit pixels positioned at left and right sides of the center unit pixel, and left and right upper and lower right units of the center unit pixel, And determining whether the center unit pixel corresponds to the jigging area based on the color conversion data corresponding to peripheral unit pixels located in the center unit pixel.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a jagging area detecting method,

The present invention relates to a gagging area detecting method and a gagging area detecting apparatus. More particularly, the present invention relates to a gagging area detecting method and a gagging area detecting apparatus that can more accurately detect a gagging area by detecting a gagging area based on luminance and directionality.

When the luminance difference between the image and the background is large and especially when the image is expressed by a plurality of slashes adjacent to each other, a staircase phenomenon occurs in which the boundary of the image is not smooth and jagged. This staircase phenomenon is known as jagging, jagging, jaggness artifact, and the like. Jigging is a boundary part of an object that is sensitive to the human visual system, which is easily recognized and thus deteriorates image quality.

Fig. 1 is a view for explaining the jigging phenomenon.

As shown in FIG. 1, when an image in which a plurality of lines are arrayed in a diagonal direction is displayed, a jigging phenomenon occurs at a boundary portion between the lines and the background. If these lines are in close proximity, these lines may appear to be connected together by a jigging phenomenon.

Therefore, in order to prevent such a jigging phenomenon, it is necessary to accurately detect a unit pixel in which a jigging phenomenon occurs. As a conventional edge detection method and a gradient-based edge detection method, There is a problem that the unit pixel in which such a jigging phenomenon occurs can not be detected accurately.

In particular, when the jigging area is detected by the edge detection method and the gradient-based edge detection method as described above in the three-dimensional image data used in the FPR-type three-dimensional image display, the accuracy is further deteriorated, There was a problem.

SUMMARY OF THE INVENTION The present invention is conceived to solve the problems as described above, and it is an object of the present invention to provide a gagging area detecting method and a gagging area detecting apparatus which can more accurately find a gagging area by detecting a gagging area in consideration of luminance and directionality. have.

According to an aspect of the present invention, there is provided a method of detecting a jagged area, the method comprising: detecting a color coordinate of each of i * j image data to be supplied to i * j (i and j are natural numbers) And generating i * j color conversion data; One of the i * j unit pixels is defined as a center unit pixel, and k (k is a natural number smaller than i or j) surrounding the center unit pixel are defined as peripheral unit pixels Defining step B; And peripheral unit pixels positioned at left and right sides of the center unit pixel, left and right peripheral unit pixels positioned at left and right sides of the center unit pixel, and left and right upper and lower right units of the center unit pixel, And determining whether the center unit pixel corresponds to the jigging area based on the color conversion data corresponding to peripheral unit pixels located in the center unit pixel.

The central unit pixel and the k peripheral unit pixels are arranged to form a matrix of m * n (= k + 1); The center unit pixel is a unit pixel positioned at the center of the m * n matrix.

Wherein the step (C) includes: calculating a number of color conversion data having a value less than or equal to a predetermined first threshold luminance among the color conversion data corresponding to peripheral unit pixels located on the left and right sides of the center unit pixel and the center unit pixel, Step C-1 for judging whether or not the predetermined number of the first unit pixels is greater than a preset first threshold number: If the result of the determination in Step C-1 is true, a plurality of peripheral unit pixels located in the lower left- And the number of color conversion data having a value less than or equal to a predetermined second threshold luminance among the color conversion data corresponding to peripheral unit pixels in the selected horizontal group is selected in advance A step C-2 for determining whether the number of pixels in the horizontal direction is larger than a predetermined second threshold number, Selecting at least one of a plurality of horizontal groups including a plurality of peripheral unit pixels and selecting a value less than or equal to a predetermined third threshold luminance among the color conversion data corresponding to peripheral unit pixels in the selected horizontal group Performing a C-3 step of determining whether the number of color conversion data having a predetermined number of color conversion data exceeds a preset third threshold number, sequentially or in reverse order; If all of the determination results in step C-2 and step C-3 are true, it is determined whether or not the fourth threshold luminance of the color conversion data corresponding to peripheral unit pixels located on the upper left of the center unit pixel Performing C-4 step of determining whether the number of color conversion data having the same value exceeds a preset fourth threshold number or performing color conversion data corresponding to peripheral unit pixels located at the lower right side of the central unit pixel Performing a C-5 step of determining whether the number of color conversion data having a value equal to or greater than a predetermined fifth threshold luminance exceeds a predetermined fifth threshold number; And a C-6 step of defining the center unit pixel as a jigging area when the determination result in step C-4 is true or the determination result in step C-5 is true.

If the determination result in step C-1 is false, or if any of the determination results in step C-2 and step C-3 is false, or if the determination result in step C-4 and the determination result in step C- Wherein the step (c) comprises the step of selecting at least one of a plurality of horizontal groups including a plurality of peripheral unit pixels arranged in the horizontal direction and positioned at the upper left of the central unit pixel C-7 determining whether the number of color conversion data having a value less than or equal to the second critical luminance among the color conversion data corresponding to peripheral unit pixels in the selected horizontal group exceeds the second threshold number, And a plurality of horizontal groups including a plurality of peripheral unit pixels arranged on the lower right side of the central unit pixel and arranged in a horizontal direction, Performing C-8 step of determining whether the number of color conversion data having a value smaller than the third threshold luminance among the color conversion data corresponding to the unit pixel is greater than the third threshold number, ; If all of the determination results at step C-7 and step C-8 are true, it is determined whether or not the color conversion data corresponding to peripheral unit pixels located at the lower left of the center unit pixel is greater than or equal to the fourth threshold luminance Performing a C-9 step of determining whether the number of color conversion data having a value greater than the fourth threshold number is greater than the fourth threshold number, Performing a C-10 step of determining whether the number of color conversion data having a value equal to or greater than the fifth threshold luminance exceeds the fifth threshold number; If the determination result in step C-9 is true, or if the determination result in step C-10 is true, then the step C-11 may define the center unit pixel as a jigging area.

In step C-11, if any one of the determination results in step C-7 and step C-8 is false, or if both the determination result in step C-9 and the determination result in step C- In the case of false, the central unit pixel is defined as a non-jigging area.

The m * n matrix is a 5 * 15 matrix type window including 75 unit pixels; The center unit pixel is a unit pixel located in 3 rows and 8 columns; Peripheral unit pixels located on the left side of the center unit pixel are unit pixels located in the third row, sixth column and third row and seventh column in the window; Peripheral unit pixels located on the right side of the center unit pixel are unit pixels located in the third row, the 9th column and the third row and the 10th column in the window; When performing the step C-2, the first and second horizontal groups are located on the lower left side of the central unit pixel; When performing the step C-2, the first horizontal group includes four rows and one column, four rows and two columns, four rows and three columns, four rows and four columns, four rows and five columns, four rows and six columns, The unit pixels located in the fourth row and the seventh column; When performing the step C-2, the second horizontal group is divided into five rows and one column, five rows and two columns, five rows and three columns, five rows and four columns, five rows and five columns, five rows and six columns, The unit pixels located in the fifth row and the seventh column; When performing the step C-3, the third and fourth horizontal groups are located on the upper right side of the central unit pixel; When performing the step C-3, the third horizontal group includes one row and nine columns, one row and ten columns, one row and eleventh column, one row and twelfth column, one row and thirteenth column, one row and fourteenth columns, 1 < / RTI > row and 15 columns; When performing the step C-3, the fourth horizontal group is divided into 2 rows and 9 columns, 2 rows and 10 columns, 2 rows and 11 columns, 2 rows and 12 columns, 2 rows and 13 columns, 2 rows and 14 columns, The unit pixels located in the second row and the 15th column; In step C-4, the peripheral unit pixels located on the upper left side of the center unit pixel are arranged in the order of 1 row 1 column, 1 row 2 column, 1 row 3 column, 1 row 4 column, 1 row 5 Are unit pixels located in a column, a row 1, a column 6, a column 7, a column 2, a column 1, a column 2, a column 2, a column 3, a column 4, a column 2, a column 5, a column 6, ; In step C-5, the peripheral unit pixels located at the lower right side of the central unit pixel are arranged in four rows, nine columns, four rows and ten columns, four rows and eleventh columns, four rows and twelve columns, four columns The unit pixels located in the columns 4, 14, 4, 15, 5, 9, 5, 10, 5, 11, 5, 12, 5, 13, 5, ; When performing the step C-7, the fifth and sixth horizontal groups are located on the left upper side of the central unit pixel; When performing the step C-7, the fifth horizontal group includes one row and one column, one row and two columns, one row and three columns, one row and four columns, one row and five columns, one row and six columns, A unit pixel located in a first column and a seventh column; When performing the step C-7, the sixth horizontal group is divided into 2 rows and 1 column, 2 rows and 2 columns, 2 rows and 3 columns, 2 rows and 4 columns, 2 rows and 5 columns, 2 rows and 6 columns, The unit pixels located in the second row and the seventh column; In the step C-8, the seventh and eighth horizontal groups are located on the upper right side of the central unit pixel; When performing the step C-8, the seventh horizontal group is divided into 4 rows and 9 columns, 4 rows and 10 columns, 4 rows and 11 columns, 4 rows and 12 columns, 4 rows and 13 columns, 4 rows and 14 columns, The unit pixels located in the fourth row and the 15th column; When performing the step C-8, the eighth horizontal group is divided into 5 rows and 9 columns, 5 rows and 10 columns, 5 rows and 11 columns, 5 rows and 12 columns, 5 rows and 13 columns, 5 rows and 14 columns, A unit pixel located in a fifth row and a fifteenth column; When performing the step C-9, the peripheral unit pixels positioned at the lower left of the center unit pixel are arranged in the 4-row, 1-column, 4-row, 2-column, 4-row, 3-column, 4-row, 4-column, Are the unit pixels located in the columns, 4 rows and 6 columns, 4 rows 7 columns, 5 rows 1 columns, 5 rows 2 columns, 5 rows 3 columns, 5 rows 4 columns, 5 rows 5 columns, 5 rows 6 columns and 5 rows 7 ; In step C-10, peripheral unit pixels located on the upper right side of the central unit pixel are arranged in a matrix of 1 row, 9 columns, 1 row 10 columns, 1 row 11 columns, 1 row 12 columns, 1 column Units located in row 13, column 1, row 14, row 1, column 15, row 2, column 9, column 2, column 10, column 2, column 11, column 2, column 12, column 2, column 14, column 2, Pixels.

Each of the color conversion data has a value of one of gradations from the darkest 0 gradation to the brightest 255 gradation; The first critical brightness, the second critical brightness, and the third critical brightness each have a gray level value corresponding to 30 gray levels; The fourth critical luminance and the fifth critical luminance have tone values corresponding to 255 tones; The first threshold number has a value of 3; The second threshold number and the third threshold number each have a value of 4; The fourth threshold number and the fifth threshold number are each set to a value of 5.

The step B and the steps C-1 to C-11 are sequentially performed on all or a part of i * j unit pixels.

When the step B and steps C-1 to C-11 are performed on all of the i * j number of unit pixels, it is necessary to completely include the peripheral unit pixels required in the step B and steps C-1 to C-11 The inferred n * m matrix is supplemented with virtual peripheral unit pixels corresponding to the deficient peripheral unit pixels; And color conversion data of an arbitrary gradation corresponding to the virtual peripheral unit pixels are set in advance.

When the step B and the steps C-1 to C-11 are performed on some of the i * j unit pixels, the peripheral unit pixels required in the step B and the steps C-1 to C-11 are completely included and the step B and the steps C-1 to C-11 are selectively performed for only the unit pixels of the n * m matrix.

The i * j pieces of image data are RGB image data; The color conversion data are YCbCr image data including a luminance component and a chrominance component.

The i * j image data are three-dimensional image data including i * j left eye image data and i * j right eye image data; The steps A through C are performed on the i * j left eye image data; The steps A through C are performed on the i * j right eye image data.

According to another aspect of the present invention, there is provided an apparatus for detecting jagged area, comprising: i * j pieces of image data to be supplied to i * j (i and j are natural numbers) A color coordinate transforming unit for transforming the color coordinates of the color coordinate transforming unit to generate i * j color transformed data; And one of the i * j unit pixels is defined as a center unit pixel, and k (k is a natural number smaller than i or j) surrounding the center unit pixel are defined as peripheral unit pixels Peripheral unit pixels located on the left and right sides of the center unit pixel, peripheral unit pixels located on the lower left and right side of the center unit pixel, and upper left unit pixels positioned on the upper left side of the center unit pixel, And a jagging area determining unit determining whether the center unit pixel corresponds to a jigging area based on color conversion data corresponding to peripheral unit pixels positioned on the lower right side.

The central unit pixel and the k peripheral unit pixels are arranged to form a matrix of m * n (= k + 1); The center unit pixel is a unit pixel positioned at the center of the m * n matrix.

The jagging area determining unit may determine that the color conversion data having a value less than or equal to a predetermined first threshold luminance among the color conversion data corresponding to peripheral unit pixels located on the left and right sides of the center unit pixel and the center unit pixel Is equal to or greater than a predetermined first threshold number C-1. If the result of the determination in step C-1 is true, it is determined whether a number of peripheral unit pixels The number of color conversion data having a value less than or equal to a predetermined second threshold luminance among the color conversion data corresponding to peripheral unit pixels in the selected horizontal group, A step C-2 of judging whether or not a predetermined second threshold number is exceeded, and a step C- And a third threshold luminance of the color conversion data corresponding to the peripheral unit pixels in the selected horizontal group is set to be smaller than a predetermined third threshold luminance, Performing C-3 steps sequentially or reversely to determine whether the number of color conversion data having the same value exceeds a preset third threshold number; If all of the determination results in step C-2 and step C-3 are true, it is determined whether or not the fourth threshold luminance of the color conversion data corresponding to peripheral unit pixels located on the upper left of the center unit pixel Performing C-4 step of determining whether the number of color conversion data having the same value exceeds a preset fourth threshold number or performing color conversion data corresponding to peripheral unit pixels located at the lower right side of the central unit pixel Performing a C-5 step of determining whether the number of color conversion data having a value equal to or greater than a predetermined fifth threshold luminance exceeds a predetermined fifth threshold number; If the determination result in step C-4 is true, or if the determination result in step C-5 is true, step C-6 of defining the center unit pixel as a jigging area is performed.

If the determination result in step C-1 is false, or if any of the determination results in step C-2 and step C-3 is false, or if the determination result in step C-4 and the determination result in step C- The jagging area determining unit may determine at least one of a plurality of horizontal groups including a plurality of peripheral unit pixels arranged in the horizontal direction and located at the upper left of the center unit pixel, C-7 step of determining whether the number of color conversion data having a value smaller than or equal to the second threshold luminance among the color conversion data corresponding to peripheral unit pixels in the selected horizontal group exceeds the second threshold number And a plurality of horizontal groups including a plurality of peripheral unit pixels arranged on the lower right side of the central unit pixel and arranged in a horizontal direction, A step C-8 for determining whether the number of color conversion data having a value smaller than the third threshold luminance among the color conversion data corresponding to peripheral unit pixels in the group exceeds the third threshold number, ; If all of the determination results at step C-7 and step C-8 are true, it is determined whether or not the color conversion data corresponding to peripheral unit pixels located at the lower left of the center unit pixel is greater than or equal to the fourth threshold luminance Performing a C-9 step of determining whether the number of color conversion data having a value greater than the fourth threshold number is greater than the fourth threshold number, Performing a C-10 step of determining whether the number of color conversion data having a value equal to or greater than the fifth threshold luminance exceeds the fifth threshold number; If the determination result in step C-9 is true or the determination result in step C-10 is true, step C-11 is performed to define the center unit pixel as a jigging area.

In step C-11, if any one of the determination results in step C-7 and step C-8 is false, or if both the determination result in step C-9 and the determination result in step C- In the case of false, the jigging area determining unit defines the center unit pixel as a non-jigging area.

The m * n matrix is a 5 * 15 matrix type window including 75 unit pixels; The center unit pixel is a unit pixel located in 3 rows and 8 columns; Peripheral unit pixels located on the left side of the center unit pixel are unit pixels located in the third row, sixth column and third row and seventh column in the window; Peripheral unit pixels located on the right side of the center unit pixel are unit pixels located in the third row, the 9th column and the third row and the 10th column in the window; When the jigging area determining unit performs step C-2, the first and second horizontal groups are located at the lower left of the center unit pixel; When the jogging area determining unit performs step C-2, the first horizontal group is divided into four rows and one column, four rows and two columns, four rows and three columns, four rows and four columns, four rows and five columns, four columns The unit pixels located in row 6 column and row 4 column 7; When the jogging area determining unit performs step C-2, the second horizontal group is divided into five rows and one column, five rows and two columns, five rows and three columns, five rows and four columns, five rows and five columns, and five columns The unit pixels located in row 6 column and row 5 column 7; When the jigging area determining unit performs step C-3, the third and fourth horizontal groups are positioned on the upper right side of the central unit pixel; When the jogging area determining unit performs step C-3, the third horizontal group is divided into one row and nine columns, one row and ten columns, one row and eleventh column, one row and twelfth column, one row and thirteenth column, one A unit pixel located in a row 14 column and a 1 row 15 column; When the jigging area determining unit performs step C-3, the fourth horizontal group is divided into two rows and nine columns, two rows and ten columns, two rows and eleventh columns, two rows and twelve columns, two rows and thirteen columns, two columns The unit pixels located in row 14 and column 2, row 15; When the jigging area determination unit performs step C-4, the peripheral unit pixels positioned at the upper left of the center unit pixel are arranged in the order of 1 row 1 column, 1 row 2 column, 1 row 3 column, 1 row 4 column , 1 row 5 columns, 1 row 6 columns, 1 row 7 columns, 2 rows 1 column, 2 rows 2 columns, 2 rows 3 columns, 2 rows 4 columns, 2 rows 5 columns, 2 rows 6 columns and 2 rows 7 columns Unit pixels; When the jigging area determining unit performs step C-5, the peripheral unit pixels located on the lower right side of the central unit pixel are arranged in four rows, nine columns, four rows and ten columns, four rows and eleventh columns, four rows and twelve columns , 4th row 13th column, 4th row 14th column, 4th row 15th column, 5th row 9th column, 5th row 10th column, 5th row 11th column, 5th row 12th column, 5th row 13th column, 5th row 14th column and 5th row 15th column Unit pixels; When the jigging area determining unit performs step C-7, the fifth and sixth horizontal groups are located on the left upper side of the center unit pixel; When the jagging area determining unit performs step C-7, the fifth horizontal group is divided into a first row and a first column, a first row and a second column, a first row and a third column, a first row and a fourth column, a first row and a fifth column, Row 6 column and column 1 row 7 columns; When the jigging area determining unit performs step C-7, the sixth horizontal group is divided into two rows and one column, two rows and two columns, two rows and three columns, two rows and four columns, two rows and five columns, two columns The unit pixels located in row 6 column and 2 row 7 column; When the jigging area determining unit performs step C-8, the seventh and eighth horizontal groups are located on the upper right side of the central unit pixel; When the jigging area determining unit performs step C-8, the seventh horizontal group is divided into 4 rows and 9 columns, 4 rows and 10 columns, 4 rows and 11 columns, 4 rows and 12 columns, 4 rows and 13 columns, and 4 columns The unit pixels located in row 14 and column 4, row 15; When the jigging area determining unit performs step C-8, the eighth horizontal group is divided into 5 rows and 9 columns, 5 rows and 10 columns, 5 rows and 11 columns, 5 rows and 12 columns, 5 rows and 13 columns, and 5 columns Unit pixels located in row 14 and column 5, row 15; When the jigging area determination unit performs step C-9, the peripheral unit pixels positioned at the lower left of the center unit pixel are arranged in the 4-row, 1-column, 4-row, 2-column, 4-row, 3-column, , 4 rows 5 columns, 4 rows 6 columns, 4 rows 7 columns, 5 rows 1 columns, 5 rows 2 columns, 5 rows 3 columns, 5 rows 4 columns, 5 rows 5 columns, 5 rows 6 columns and 5 rows 7 Unit pixels; When the jigging area determining unit performs step C-10, the peripheral unit pixels located on the upper right side of the central unit pixel are arranged in the order of 1 row 9 columns, 1 row 10 columns, 1 row 11 columns, 1 row 12 rows, 1 row 13 columns, 1 row 14 columns, 1 row 15 columns, 2 rows 9 columns, 2 rows 10 columns, 2 rows 11 columns, 2 rows 12 columns, 2 rows 13 columns, 2 rows 14 columns, and 2 rows 15 < th > columns.

Each of the color conversion data has a value of one of gradations from the darkest 0 gradation to the brightest 255 gradation; The first critical brightness, the second critical brightness, and the third critical brightness each have a gray level value corresponding to 30 gray levels; The fourth critical luminance and the fifth critical luminance have tone values corresponding to 255 tones; The first threshold number has a value of 3; The second threshold number and the third threshold number each have a value of 4; The fourth threshold number and the fifth threshold number are each set to a value of 5.

The jigging region determination unit sequentially performs the B step, the C-1 step, and the C-11 step on all or some of the i * j number of unit pixels.

When the step B and steps C-1 to C-11 are performed on all of the i * j number of unit pixels, it is necessary to completely include the peripheral unit pixels required in the step B and steps C-1 to C-11 The inferred n * m matrix is supplemented with virtual peripheral unit pixels corresponding to the deficient peripheral unit pixels; And color conversion data of an arbitrary gradation corresponding to the virtual peripheral unit pixels are set in advance.

When the step B and the steps C-1 to C-11 are performed on some of the i * j number of unit pixels, the jagging region detecting device performs the steps B, C-1 to C-11 And performing steps B, C-1 to C-11 described above only for the unit pixel of the n * m matrix including the peripheral unit pixels completely.

The i * j pieces of image data are RGB image data; The color conversion data are YCbCr image data including a luminance component and a chrominance component.

The i * j image data are three-dimensional image data including i * j left eye image data and i * j right eye image data; The jagging region determining unit performs the steps A through C for i * j left eye image data; The jagging region determination unit performs the steps A through C for i * j right eye image data.

The jagging area detecting method and the jagging area detecting apparatus according to the present invention have the following effects.

In the present invention, the gagging area can be more accurately detected by detecting the gagging area based on the luminance and the directionality. That is, a jigging area is searched in the left and right direction of the central unit pixel, the direction connecting the lower left and right upper side of the central unit pixel, and the upper left side and the lower right side of the central unit pixel, It is possible to more accurately find the gagging area by judging the gagging area based on the luminance difference between the pixels.

1 is a view for explaining a jigging phenomenon;
BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a display device.
3 is a block diagram of a gagging area detecting apparatus of FIG.
4 is a view showing an image displayed on a part of the display panel of Fig.
Figure 5 is an enlarged view of the window shown in Figure 4;
FIGS. 6A to 6C are diagrams for explaining a method for determining whether a central unit pixel located in the window of FIG. 5 is a jigging area. FIG.
7 is a view showing unit pixels constituting oblique lines connecting the upper left side and the lower right side.
FIGS. 8A and 8B are diagrams for explaining a method for determining whether a central unit pixel located in the window of FIG. 7 is a jigging area.
FIG. 9A is a diagram for explaining a method of setting a window for a central unit pixel positioned at the edge when performing the operations of the first stage through the eleventh stage for all i * j unit pixels; FIG.
FIG. 9B is a diagram for explaining a method of setting a window for a central unit pixel when performing a one-step operation to an eleventh step operation on a part of i * j unit pixels; FIG.

2 is a diagram illustrating a display device having a gagging area detecting apparatus according to an embodiment of the present invention.

2, the display device having the gagging area detecting device according to the embodiment of the present invention includes a display panel DSP, a jagged area detecting device JAD, an image correcting part IMD, a timing controller TC) data driver DD and a gate driver GD.

The display panel DSP includes a plurality of pixels PXL, a plurality of gate lines GL1 to GLn for transmitting the various signals required for displaying the pixels of the pixels PXL, a plurality of data lines DL1 To DLj. These pixels PXL are arranged in a matrix form on the display panel DSP. And j pixels PXL are arranged in each of the horizontal lines HL1 to HLn. These pixels PXL are divided into a red pixel R for displaying red, a green pixel G for displaying green, and a blue pixel B for displaying blue. At this time, three red pixels, green pixels, and blue pixels connected to the same gate line and located adjacent to each other are one unit pixel UPXL. This unit pixel displays one unit image by mixing a red image, a green image, and a blue image. Each pixel PXL may include a pixel electrode, a common electrode, and a liquid crystal layer interposed therebetween.

The jigging area detecting device JAD analyzes the three-dimensional image data (3D-RGB) of one frame input from the system (not shown) and outputs the jagged area Dimensional image data to be supplied as unit pixels corresponding to the three-dimensional image data. Then, based on the detection result, the jogging area information INF_JG is generated. Here, the three-dimensional image data provided by the system is divided into left eye image data and right eye image data. Pixels located on the odd-numbered horizontal lines HL1, HL3, ... among the horizontal lines of the display panel DSP display the left-eye image corresponding to the left-eye image data, and the pixels on the odd-numbered horizontal lines HL2, HL4,. ..) display the right eye image corresponding to the right eye image data. The user receives the left eye images and the right eye images displayed on the display panel DSP through the stereoscopic glasses equipped with the image filters. At this time, the left eye images pass through only the left eye lens of the stereoscopic glasses selectively and are input to the left eye of the user, while the right eye images selectively pass through only the right eye lens of the stereoscopic glasses and are input to the user's right eye. As the left eye images and the right eye images are mixed in the user's brain, the user can view a stereoscopic image.

The above-described jigging area information INF_JG includes left-eye gaging area information generated based on left-eye image data of one frame and right-eye gaging area information generated based on right-eye image data of one frame.

The image correction unit IMD corrects the three-dimensional image data (3D-RGB) of one frame input to itself using the jigging area information INF_JG from the jagged area detection apparatus JAD. That is, the image correction unit IMD corrects the left eye image data of one frame based on the left eye gaging area information, and corrects the right eye image data of one frame based on the right eye gaging area information. In addition, the image correction unit IMD selects only the left eye image data (hereinafter, the odd left eye image data) to be supplied to the pixels of the odd-numbered horizontal line among the corrected left eye image data, Eye image data to be supplied to the pixels of the left eye image. In addition, the image correction unit IMD selects only right eye image data (hereinafter, right eye right eye image data) to be supplied to the pixels of the even horizontal line from the corrected right eye image data, The right eye image data to be supplied to the pixels of the right eye image. The odd-numbered left eye image data and the even-numbered right eye image data selected from the image correction unit IMD are provided to the timing controller TC.

The timing controller TC receives a horizontal synchronizing signal Hsync, a vertical synchronizing signal Vsync and a clock pulse signal CLK from the system and generates a data control signal DCS and a gate control signal GCS using them do. Further, the timing controller TC includes three-dimensional image data (3D-RGB_M) corrected from the image correction unit (IMD); (I.e., the odd-numbered left eye image data and the even-numbered right eye image data), and supplies the aligned three-dimensional image data to the data driver DD at a preset timing.

The data control signal DCS described above includes the source clock pulse signal SCLK, the source start pulse signal SSP, the carry signal CR, the source output enable signal SOE, the scan direction control signal UP, A control signal REV and a polarity inversion control signal POL. This data control signal is supplied to the data driver DD.

The gate control signal GCS includes a gate start pulse GSP, a gate shift clock signal GSC, and a gate output enable signal GOE. This gate control signal is supplied to the gate driver GD.

The gate driver GD sequentially generates gate signals in accordance with the gate control signal GCS and sequentially supplies the generated gate signals to the i gate lines GL1 to GLi. Thus, the pixels connected to the gate line are sequentially activated in units of horizontal lines.

The data driver DD converts the three-dimensional image data (3D-RGB_M) from the timing controller TC into an analog signal in accordance with the data control signal DCS, And supplies three-dimensional image data of one horizontal line to all the data lines.

Fig. 3 is a block diagram of the jagged-area detecting device JAD of Fig. 2. Fig.

The jagged region detection apparatus JAD according to the present invention includes a color coordinate transformation unit 301 and a jagged region determination unit 302 as shown in FIG.

The color coordinate conversion unit 301 converts the color coordinates of each of the three-dimensional image data (3D-RGB) input from the system to generate color conversion data YCbCr. That is, the 3D image data (3D-RGB) includes right eye image data and left eye image data. The color coordinate converter 301 converts the color coordinates of each of the left eye image data to generate left eye color conversion data And converts the color coordinates of each of the right eye image data to generate right eye color conversion data. Each color conversion data has a luminance component (Y) and a color difference component (CbCr). Each of the color conversion data YCbCr may have any one of the gradations from the darkest 0 gradation to the brightest 255 gradations.

The jagging area determining unit 302 analyzes the left eye color conversion data of one frame and the right eye color conversion data of one frame from the color coordinate conversion unit 301 and outputs the jagged area of the 3D image data (3D-RGB) Dimensional image data to be supplied as unit pixels corresponding to the three-dimensional image data. Then, based on the detection result, the jogging area information INF_JG is generated, and then the jogging area information INF_JG is supplied to the timing controller TC.

For this operation, the jigging area determining unit 302 according to the present invention defines one unit pixel among the i * j unit pixels of the display panel DSP as a center unit pixel, k unit pixels are defined as peripheral unit pixels. The peripheral unit pixels located on the left and right sides of the central unit pixel, the peripheral unit pixels located on the lower left and upper right of the center unit pixel, and the peripheral unit pixels located on the upper left and lower right sides of the center unit pixel It is determined whether the center unit pixel corresponds to the jigging area based on the color conversion data corresponding to the pixels. Based on this determination, it is possible to determine whether the image data (left eye image data or right eye image data) to be supplied to this central unit pixel is data located in the jigging area. This will be described in more detail with reference to the drawings.

4 is a view showing an image displayed on a part of the display panel of FIG.

4, four oblique lines (L1 to L4) and one right triangle (TRI) are shown, and on one oblique line (L1) of the four oblique lines (L1 to L4) One window (WD) is located. That is, when any one unit pixel to be judged as a jigging region is selected as the center unit pixel, k peripheral unit pixels located around the center unit pixel are set as peripheral unit pixels, one window including k peripheral unit pixels is generated. A unit pixel located at the center of the window is a central unit pixel, and the remaining unit pixels are peripheral unit pixels. The size of the window may vary, but to effectively detect the jagged area at a slanting slope at a fine angle close to the horizontal, the length of the window in the horizontal direction is longer than the length in the vertical direction It is preferable to form it into a rectangular shape.

5 is an enlarged view of the window shown in Fig.

As shown in Fig. 5, one window WD has a matrix form with m rows and n columns. In Fig. 5, a window WD in the form of a 5 * 15 matrix in which m is 5 and n is 15 is shown as an example. The central unit pixel in the window WD is a unit pixel located at the center (center of gravity) of the window WD. As shown in FIG. 5, Pixels P3 and P8. The unit pixels in the window WD excluding the central unit pixels P3 and 8 located in the third row and the eighth column are peripheral unit pixels. Hereinafter, a method for determining whether the center unit pixel P3,8 located in the window WD shown in FIG. 5 is a jigging area or a non-jigging area will be described in detail.

FIGS. 6A to 6C are diagrams for explaining a method for determining whether the central unit pixel P3, 8 located in the window WD of FIG. 5 is a jigging area. The color conversion data to be described later can be any one of the left eye color conversion data related to the left eye image data and the right eye color conversion data related to the right eye image data. A method of detecting the jigging area from the left eye image data, Since the method of detecting the jagged area is the same, the color conversion data to be described later is left-eye color conversion data unless otherwise described.

6A, the jagging region determining unit 302 determines the jiggings of the center unit pixels P3 and 8 and the color conversion corresponding to the peripheral unit pixels located on the left and right of the center unit pixels P3 and 8 The number of color conversion data having a value less than or equal to a predetermined first threshold luminance among the data is determined and whether or not the number of the obtained color conversion data exceeds a preset first threshold number is performed do. For example, peripheral unit pixels located on the left side of the central unit pixel P3, 8 are set to unit pixels P3,6, P3,7 located in the third row, sixth column and third row, seventh column of the window WD And peripheral unit pixels positioned on the right side of the center unit pixels P3 and 8 are set as the unit pixels P3,9 and P3,10 located in the third row and the 9th column and the third column and the 10th column of the window WD, The jagging area determining unit 302 determines the luminance of the color conversion data corresponding to the peripheral unit pixel P3,6 in the third row and sixth column, the luminance of the color conversion data corresponding to the peripheral unit pixel P3,7 in the third row, seventh column, The luminance of the color conversion data corresponding to the central unit pixel (P3, 8) in the third row and the 8th column, the luminance of the color conversion data corresponding to the peripheral unit pixel (P3, 9) ) Is compared with the first threshold brightness, respectively. By this comparison, the number of color conversion data having a value less than or equal to the first threshold luminance is calculated. Then, the jagging area determining unit 302 determines whether the calculated number exceeds the first threshold number.

If the determination result in the above-described one-step operation is true, that is, if the number of color conversion data having a value less than or equal to the first threshold luminance exceeds the first threshold number, the jagging area determination unit 302 determines Perform the same two-step and three-step tasks.

That is, as shown in FIG. 6B, the jagging region determining unit 302 determines a number of horizontal groups including a plurality of peripheral unit pixels arranged in the horizontal direction and located on the lower left side of the central unit pixels P3 and 8, And determines the number of color conversion data having a value less than or equal to a preset second threshold luminance among the color conversion data corresponding to peripheral unit pixels in the selected horizontal group, And performs a two-step operation of determining whether or not the number of grids exceeds a preset second threshold number. For example, as shown in FIG. 6B, the first and second horizontal groups GR1 and GR2 are located at the lower left of the central unit pixel P3,8 in the third row and the eighth column. The first horizontal group GR1 is a unit pixel located in the 4th row 1 column, the 4th row 2 column, the 4th row 3 column, the 4th row 4th column, the 4th row 5th column, the 4th row 6th column and the 4th row 7th column of the window WD And the second horizontal group includes five rows and one column, five rows and two columns, five rows and three columns, five rows and four columns, five rows and five columns of the window WD, And unit pixels P5,1 to P5,7 located in the fifth row, sixth column and fifth row and seventh column. In this case, the gagging area determining unit 302 determines the luminance of the color conversion data corresponding to the peripheral unit pixel P4,1 of the fourth row and the first column belonging to the first group GR1, P4, 2), the luminance of the color conversion data corresponding to the peripheral unit pixels of the fourth row and third column (P4, 3), the luminance of the color conversion data corresponding to the peripheral unit pixels P4, The luminance of the color conversion data, the luminance of the color conversion data corresponding to the peripheral unit pixels P4,5 in the 4th row and 5th column, the luminance of the color conversion data corresponding to the peripheral unit pixel P4,6 in the 4th row and 6th column, The luminance of the color conversion data corresponding to the seventh column peripheral unit pixels P4 and P7 is respectively compared with the second critical luminance. By this comparison, the number of color conversion data having a value less than or equal to the second critical luminance is calculated. Then, the jagging area determining unit 302 determines whether the calculated number exceeds the second threshold number. The gagging area determining unit 302 determines the luminance of the color conversion data corresponding to the peripheral unit pixel P5,1 in the fifth row and the first column belonging to the second group GR2, 2), the luminance of the color conversion data corresponding to the peripheral unit pixels P5,3 in the fifth row and the third column, the luminance of the color conversion data corresponding to the peripheral unit pixels P5,4 in the fifth row and the fourth column, The luminance of the color conversion data corresponding to the peripheral unit pixels P5, 5 in the fifth row and the fifth column, the luminance of the color conversion data corresponding to the peripheral unit pixel P5, 6 in the fifth row and the sixth column, The luminance of the color conversion data corresponding to the unit pixels P5 and 7 is respectively compared with the second threshold luminance. By this comparison, the number of color conversion data having a value less than or equal to the second critical luminance is calculated. Then, the jagging area determining unit 302 determines whether the calculated number exceeds the second threshold number.

6B, the jagging region determining unit 302 may determine the number of horizontal groups including a plurality of peripheral unit pixels arranged in the horizontal direction and located on the upper right side of the central unit pixels P3 and 8, And determines the number of color conversion data having a value less than or equal to a predetermined third threshold luminance among the color conversion data corresponding to peripheral unit pixels in the selected horizontal group, And performs a three-step operation for determining whether or not the number of grids exceeds a preset third threshold number. For example, as shown in Fig. 6B, the third and fourth horizontal groups GR3 and GR4 are positioned on the upper right side of the central unit pixel P3,8 in the third row and the eighth column. The third horizontal group includes the unit pixels P1 (P1) located in the 1st row, 9th column, 1st row 10th column, 1st row 11th column, 1st row 12th column, 1st row 13th column, 1st row 14th column and 1st row 15th column of the window WD , 9 to P1, 15), and the fourth horizontal group comprises two rows and nine columns, two rows and ten columns, two rows and eleventh columns, two rows and twelve columns, two rows and thirteen columns, two rows and fourteen columns of window WD And unit pixels P2, 9 through P2, 15 located in the second row and the 15th column. In this case, the jagging area determining unit 302 determines the luminance of the color conversion data corresponding to the peripheral unit pixels P1 and 9 in the first row and the ninth column belonging to the third group GR3, The luminance of the color conversion data corresponding to the peripheral unit pixels P1 and 11 in the first row and the 11th column, the luminance of the color conversion data corresponding to the peripheral unit pixels P1 and 11 in the first row 11, The luminance of the converted data, the luminance of the color conversion data corresponding to the peripheral unit pixels (P1, 13) of one row and 13 columns, the luminance of the color conversion data corresponding to the peripheral unit pixels (P1, 14) The luminance of the color conversion data corresponding to the peripheral unit pixel (P1, 15) of the column is compared with the third critical luminance, respectively. By this comparison, the number of color conversion data having a value less than or equal to the third threshold luminance is calculated. Then, the jagging area determining unit 302 determines whether the calculated number exceeds the third threshold number. The gagging area determining unit 302 determines the luminance of the color conversion data corresponding to the peripheral unit pixels P2 and 9 in the 2 rows and 9 columns belonging to the fourth group GR4, 10), the luminance of the color conversion data corresponding to the peripheral unit pixels (P2, 11) in the 2 rows and 11 columns, the luminance of the color conversion data corresponding to the peripheral unit pixels (P2, 12) The luminance of the color conversion data corresponding to the peripheral unit pixels P2 and 13 in the 2 rows and 13 columns, the luminance of the color conversion data corresponding to the peripheral unit pixels P2 and 14 in the 2 rows and 14 columns, And the luminance of the color conversion data corresponding to the unit pixels (P2, 15) is respectively compared with the third threshold luminance. By this comparison, the number of color conversion data having a value less than or equal to the third threshold luminance is calculated. Then, the jagging area determining unit 302 determines whether the calculated number exceeds the third threshold number.

Here, the above-described two-step operation may be performed before the three-step operation, or may be performed in the reverse order. Also, the two-step operation and the three-step operation may be performed at the same time. Also, depending on the condition, only one of the two-stage operation and the three-stage operation may be performed.

If the determination result in the above-described two-step operation and the determination result in the third-step operation are both true, that is, if the color conversion corresponding to the peripheral unit pixels in the first horizontal group GR1 (or the second horizontal group GR2) The number of color conversion data having a value less than or equal to the second threshold luminance of the data exceeds the second threshold number and the peripheral unit pixels in the third horizontal group GR3 (or the fourth horizontal group GR4) When the number of color conversion data having a value less than or equal to the third threshold luminance among the color conversion data corresponding to the color conversion data exceeds the third threshold number, the jagging area determination unit 302 performs the following four steps or five Perform step operations.

6C, among the color conversion data corresponding to the peripheral unit pixels located on the upper left of the central unit pixel P3,8, the jagging area determining unit 302 determines the fourth threshold The number of color conversion data having a value equal to or greater than the luminance is determined, and a determination is made as to whether or not the number of color conversion data exceeds a preset fourth threshold number. For example, the peripheral unit pixels positioned on the upper left side of the central unit pixel P3 and 8 are arranged in the order of 1 row 1 column, 1 row 2 column, 1 row 3 column, 1 row 4 column, 1 row 5 column , The unit pixels located in the 1st row 6th column, 1st row 7th column, 2nd row 1th column, 2nd row 2th column, 2nd row 3rd column, 2nd row 4th column, 2nd row 5th column, 2nd row 6th column and 2nd row 7th column P1,1 to P1,7, P2,1 to P2,7), the jagging area determining unit 302 determines the luminance of the color conversion data corresponding to the peripheral unit pixel P1,1 in the first row and the first column , The luminance of the color conversion data corresponding to the peripheral unit pixels of the first row and the second column (P1, 2), the luminance of the color conversion data corresponding to the peripheral unit pixel (P1, 3) of the first row and the third column, The luminance of the color conversion data corresponding to the pixels P1 and 4, the luminance of the color conversion data corresponding to the peripheral unit pixels P1 and 5 of the first row and the fifth column, The luminance of the color conversion data corresponding to the peripheral unit pixels P1 and 7 in the first row and the seventh column, the luminance of the color conversion data corresponding to the peripheral unit pixels P1, , The luminance of the color conversion data corresponding to the peripheral unit pixels P2 and 2 in the 2 rows and 2 columns, the luminance of the color conversion data corresponding to the peripheral unit pixels P2 and 3 in the 2 rows and 3 columns Luminance, the luminance of the color conversion data corresponding to the peripheral unit pixel (P2, 4) in the 2 rows and 4 columns, the luminance of the color conversion data corresponding to the peripheral unit pixel (P2, 5) The luminance of the color conversion data corresponding to the pixels P2 and 6 and the luminance of the color conversion data corresponding to the peripheral unit pixels P2 and 7 of the second row and seventh column are respectively compared with the fourth threshold luminance. By this comparison, the number of color conversion data having a value less than or equal to the fourth critical luminance is calculated. Then, the jagging area determining unit 302 determines whether the calculated number exceeds the fourth threshold number.

6C, among the color conversion data corresponding to the peripheral unit pixels positioned on the lower right side of the central unit pixel P3,8, the jagging area determining unit 302 determines the fifth threshold The number of color conversion data having a value equal to or greater than the luminance is determined, and a fifth step operation is performed to determine whether the number of the color conversion data exceeds a preset fifth threshold number. For example, the peripheral unit pixels positioned on the lower right side of the central unit pixel P3 and 8 are the 4th row 9th column, the 4th row 10th column, the 4th row 11th column, the 4th row 12th column, the 4th row 13th column, , Unit pixels located in the 4th row, the 14th column, the 4th row 15th column, the 5th row 9th column, the 5th row 10th column, the 5th row 11th column, the 5th row 12th column, the 5th row 13th column, the 5th row 14th column and the 5th row 15th column P4,9 to P4,15, P5,9 to P5,15), the jagging area determining unit 302 determines the luminance of the color conversion data corresponding to the peripheral unit pixels P4,9 of the 4 < th > The luminance of the color conversion data corresponding to the peripheral unit pixels P4, 10 of 4 rows and 10 columns, the luminance of the color conversion data corresponding to the peripheral unit pixels P4, 11 of the 4th row 11 columns, (P4, 12), the luminance of the color conversion data corresponding to the peripheral unit pixels (P4, 13) in the 4th row and the 13th column, the luminance of the color conversion data corresponding to the peripheral unit pixels The luminance of the color conversion data, the luminance of the color conversion data corresponding to the peripheral unit pixels (P4, 15) of 4 rows and 15 columns, The luminance of the color conversion data corresponding to the peripheral unit pixels P5 and 9, the luminance of the color conversion data corresponding to the peripheral unit pixels P5 and 10 of 5 rows and 10 columns, the luminance of the peripheral unit pixels P5 and 11 of 5 rows and 11 columns, The luminance of the color conversion data corresponding to the peripheral unit pixels P5, 12 in the 5th row and 12th column, the luminance of the color conversion data corresponding to the peripheral unit pixels P5, 13 in the 5th row and the 13th column, , The luminance of the color conversion data corresponding to the peripheral unit pixels (P5, 14) of 5 rows and 14 columns and the luminance of the color conversion data corresponding to the peripheral unit pixels (P5, 15) of 5 rows and 15 columns are compared with the fifth threshold luminance do. By this comparison, the number of color conversion data having a value less than or equal to the fifth threshold luminance is calculated. Then, the jagging area determining unit 302 determines whether the calculated number exceeds the fifth threshold number.

The jagging region determining unit 302 then defines the central unit pixel P3,8 as a jagging region when the determination result in the fourth step operation is true or the determination result in the fifth step operation is true Step 6 Perform the task.

Here, the one-threshold luminance, the second critical luminance, and the third critical luminance may be set to tone values corresponding to 30 gradations, respectively, and the fourth critical luminance and the fifth critical luminance may be set to 255 Lt; / RTI > Also, the first threshold number may be set to a value of 3, the second threshold number and the third threshold number may be set to 4, and the fourth threshold number and the fifth threshold number may be set to a value of 5, respectively.

Assuming that the unit pixels (unit pixels processed in black) constituting the oblique line shown in FIG. 5 are supplied with the color conversion data having a value of 30 gray-scale under such a setting condition, Assuming that all the remaining unit pixels positioned are supplied with the color conversion data having a value of 255 tones, the central unit pixel P3, 8 in FIG. 5 has the result of the determination in the above- The pixels P3, 8 are determined as the jigging area. In other words, the oblique lines shown in FIG. 5 have an inclined direction connecting the lower left side and the upper right side, and the luminance of the color conversion data of the unit pixels constituting the oblique lines is sufficiently dark compared with the surroundings, The center unit pixel P3,8 of the 3 rows and 8 columns located in the center is finally defined as the gagging area.

However, when the judgment result in the first step operation is false, or when any of the judgment results in the second step operation and the third step operation is false, or when the judgment result in the fourth step operation and the judgment in the fifth step operation If all of the results are false, the jigging area determining unit 302 further performs seven steps to ten steps as follows. The case where the judgment result is false will be described in detail as follows.

7 is a diagram showing unit pixels constituting oblique lines connecting the upper left side and the lower right side.

The numerical values of the critical luminances and critical numbers are set to values as described above, and the unit pixels (unit pixels processed in black) constituting the oblique line shown in FIG. 7 are subjected to color conversion Assuming that the data is supplied and the remaining unit pixels located in the periphery of the oblique line are all supplied with the color conversion data having a value of 255 gray scales, it is assumed that the upper left side and the lower right side as shown in FIG. 7 When the above-described one-step operation is performed on the oblique line, the judgment result becomes true. However, if you perform a two-step operation on this, the result is false. Accordingly, in this case, the jigging area determining unit 302 further performs seven steps to ten steps as follows. This will be described in detail with reference to the drawings.

FIGS. 8A and 8B are diagrams for explaining a method for determining whether the central unit pixel P3,8 located in the window WD of FIG. 7 is a gaging area.

That is, as shown in FIG. 8A, the jagging area determining unit 302 determines a number of horizontal groups (pixels) including a plurality of peripheral unit pixels arranged in the horizontal direction, And the number of color conversion data having a value less than or equal to a second threshold luminance among the color conversion data corresponding to peripheral unit pixels in the selected horizontal group is grasped, And determines whether the number of the first thresholds exceeds the second threshold number. For example, as shown in Fig. 8A, the fifth and sixth horizontal groups GR5 and GR6 are located on the upper left side of the central unit pixel P3,8 in the third row and the eighth column. The fifth horizontal group GR5 is a unit pixel located in the first row, first column, the first row, the second column, the first row, the third column, the first row, the fourth column, the first row, the fifth column, the first row, the sixth column, And the sixth horizontal group GR6 includes two rows and one column, two rows and two columns, two rows and three columns, two rows and four columns, two rows and four columns of the window WD, (P1, P2, 7) located in the fifth column, the second row, the sixth column and the second column and the seventh column. In this case, the gagging area determining unit 302 determines the luminance of the color conversion data corresponding to the peripheral unit pixel P1,1 in the first row and the first column belonging to the fifth group GR5, The luminance of the color conversion data corresponding to the peripheral unit pixels P1 and 2 in the first row and fourth column, the luminance of the color conversion data corresponding to the peripheral unit pixels P1 and 3 in the first row and the third column, The luminance of the converted data, the luminance of the color conversion data corresponding to the peripheral unit pixel (P1, 5) of one row and five columns, the luminance of the color conversion data corresponding to the peripheral unit pixel (P1, And the luminance of the color conversion data corresponding to the column peripheral unit pixels P1 and 7 are respectively compared with the second threshold luminance. By this comparison, the number of color conversion data having a value less than or equal to the second critical luminance is calculated. Then, the jagging area determining unit 302 determines whether the calculated number exceeds the second threshold number. The gagging area determining unit 302 determines the luminance of the color conversion data corresponding to the peripheral unit pixel P2,1 in the second row and the first column belonging to the sixth group GR6, 2), the luminance of the color conversion data corresponding to the peripheral unit pixels P2 and 3 in the 2 rows and 3 columns, the luminance of the color conversion data corresponding to the peripheral unit pixels P2 and 4 in the 2 rows and 4 columns, The luminance of the color conversion data corresponding to the peripheral unit pixels P2 and 5 in the 2 rows and 5 columns, the luminance of the color conversion data corresponding to the peripheral unit pixels P2 and 6 in the 2 rows and 6 columns, And the luminance of the color conversion data corresponding to the unit pixels P2 and 7 is respectively compared with the second threshold luminance. By this comparison, the number of color conversion data having a value less than or equal to the second critical luminance is calculated. Then, the jagging area determining unit 302 determines whether the calculated number exceeds the second threshold number. 8A, the jagging area determining unit 302 determines a number of horizontal groups including a plurality of peripheral unit pixels arranged on the lower right side of the central unit pixel P3,8 and arranged in the horizontal direction, And the number of color conversion data having a value less than or equal to the third threshold luminance among the color conversion data corresponding to peripheral unit pixels in the selected horizontal group is grasped, The number of times the number of the first thresholds exceeds the third threshold number. For example, as shown in Fig. 8A, the seventh and eighth horizontal groups GR7 and GR8 are positioned on the lower right side of the central unit pixel P3,8 in the third row and the eighth column. The seventh horizontal group GR7 is a unit pixel located in the 4th row 9th column, the 4th row 10th column, the 4th row 11th column, the 4th row 12th column, the 4th row 13th column, the 4th row 14th column and the 4th row 15th column of the window WD And the eighth horizontal group GR8 includes five rows and nine columns, five rows and ten columns, five rows and eleventh columns, five rows and twelve columns, and five columns of the window WD, 13, 5, and 14, and 5 and 15 columns. In this case, the gagging area determining unit 302 determines the luminance of the color conversion data corresponding to the peripheral unit pixels P4,9 of the 4th row and 9th column in the seventh group, the luminance of the peripheral unit pixels P4,10 , The luminance of the color conversion data corresponding to the peripheral unit pixels P4 and 11 in the 4th row and 11th column, the luminance of the color conversion data corresponding to the peripheral unit pixels P4 and 12 in the 4th row and 12th columns Luminance, the luminance of the color conversion data corresponding to the peripheral unit pixels P4, 13 of 4 rows and 13 columns, the luminance of the color conversion data corresponding to the peripheral unit pixels P4, 14 of 4 rows and 14 columns, And the luminance of the color conversion data corresponding to the pixels P4 and 15 is respectively compared with the third threshold luminance. By this comparison, the number of color conversion data having a value less than or equal to the third threshold luminance is calculated. Then, the jagging area determining unit 302 determines whether the calculated number exceeds the third threshold number. The jagging area determining unit 302 determines the luminance of the color conversion data corresponding to the peripheral unit pixels P5,9 of the fifth row and the ninth column belonging to the eighth group GR8 and the luminance of the peripheral unit pixels P5, 10), the luminance of the color conversion data corresponding to the peripheral unit pixels (P5, 10) of 5 rows and 11 columns, the luminance of the color conversion data corresponding to the peripheral unit pixels (P5, 12) The luminance of the color conversion data corresponding to the peripheral unit pixels P5 and 13 of 5 rows and 13 columns, the luminance of the color conversion data corresponding to the peripheral unit pixels P5 and 14 of 5 rows and 14 columns, The luminance of the color conversion data corresponding to the unit pixels P5 and 15 is respectively compared with the third threshold luminance. By this comparison, the number of color conversion data having a value less than or equal to the third threshold luminance is calculated. Then, the jagging area determining unit 302 determines whether the calculated number exceeds the third threshold number.

Here, the seven-step operation described above may be performed before the eight-step operation, or may be performed in the reverse order. In addition, the 7-step operation and the 8-step operation may be performed simultaneously. Also, depending on the condition, only one of the seven-step operation and the eight-step operation may be performed.

If the determination result in the 7th step operation and the judgment result in the 8th step operation are both true, that is, if the color conversion corresponding to the peripheral unit pixels in the fifth horizontal group GR5 (or the sixth horizontal group GR6) The number of color conversion data having a value smaller than or equal to the second threshold luminance of the data exceeds the second threshold number and the peripheral unit pixels in the seventh horizontal group GR7 (or the eighth horizontal group GR8) When the number of the color conversion data having a value less than or equal to the third threshold luminance among the color conversion data corresponding to the color conversion data exceeds the third threshold number, the jagging area determination unit 302 performs the following nine steps or 10 Perform step operations.

That is, as shown in FIG. 8B, the jagging area determining unit 302 determines the jagging area of the color conversion data corresponding to the peripheral unit pixels located at the lower left of the central unit pixel P3,8, The number of color conversion data having a value equal to or greater than that of the color conversion data is determined, and a nine step operation is performed to determine whether or not the obtained number exceeds the fourth threshold number. For example, the peripheral unit pixels positioned at the lower left of the central unit pixel P3 and 8 are the 4th row 1 column, the 4th row 2 column, the 4th row 3 column, the 4th row 4th column, the 4th row 5th column, , Unit pixels located in the 4th row 6th column, the 4th row 7th column, the 5th row 1th column, the 5th row 2th column, the 5th row 3th column, the 5th row 4th column, the 5th row 5th column, the 5th row 6th column and the 5th row 7th column P4,1, P5,1 to P5,7), the jagging area determining unit 302 determines the luminance of the color conversion data corresponding to the peripheral unit pixel P4,1 in the fourth row and one column , The luminance of the color conversion data corresponding to the peripheral unit pixels P4,2 in the fourth row and the second column, the luminance of the color conversion data corresponding to the peripheral unit pixels P4,3 in the fourth row and the third column, The luminance of the color conversion data corresponding to the peripheral unit pixels P4,4 in the fourth row and the sixth column, the luminance of the color conversion data corresponding to the peripheral unit pixels P4,5 in the fourth row and fifth column, The luminance of the color conversion data, the luminance of the color conversion data corresponding to the peripheral unit pixels P4, 7 in the fourth row and the seventh column, the luminance of the peripheral unit pixels P5, , The luminance of the color conversion data corresponding to the peripheral unit pixels P5 and 2 in the fifth row and the second column, the luminance of the color conversion data corresponding to the peripheral unit pixels P5 and P3 in the fifth row and the third column Luminance, the luminance of the color conversion data corresponding to the peripheral unit pixels P5, 4 of 5 rows and 4 columns, the luminance of the color conversion data corresponding to the peripheral unit pixels P5, 5 of 5 rows and 5 columns, The luminance of the color conversion data corresponding to the pixels P5 and 6 and the luminance of the color conversion data corresponding to the peripheral unit pixels P5 and 7 of the fifth row and seventh column are respectively compared with the fourth critical luminance. By this comparison, the number of color conversion data having a value less than or equal to the fourth critical luminance is calculated. Then, the jagging area determining unit 302 determines whether the calculated number exceeds the fourth threshold number.

As shown in FIG. 8B, the jagging area determining unit 302 determines the jagging area of the color conversion data corresponding to the peripheral unit pixels located on the upper right side of the central unit pixel P3,8, The number of color conversion data having a value equal to or greater than the threshold value is determined, and the number of the color conversion data is determined to be greater than the fifth threshold number. For example, the peripheral unit pixels positioned on the upper right side of the central unit pixel P3, 8 are arranged in the order of 1 row 9 columns, 1 row 10 columns, 1 row 11 columns, 1 row 12 columns, 1 row 13 columns , The unit pixels located in the 1st row, 14th column, 1st row 15th column, 2nd row 9th column, 2nd row 10th column, 2nd row 11th column, 2nd row 12th column, 2nd row 13th column, 2nd row 14th column and 2nd row 15th column 9, P2, 15), the jagging area determining unit 302 determines the luminance of the color conversion data corresponding to the peripheral unit pixels (P1, 9) in the first row and the ninth column , The luminance of the color conversion data corresponding to the peripheral unit pixels (P1, 10) of one row and 10 columns, the luminance of the color conversion data corresponding to the peripheral unit pixels (P1, 11) (P1, 12), the luminance of the color conversion data corresponding to the peripheral unit pixels (P1, 13) in the 1 row and 13 columns, the luminance of the color conversion data corresponding to the peripheral unit pixels The luminance of the color conversion data, the luminance of the color conversion data corresponding to the peripheral unit pixels (P1, 15) of one row and 15 columns, The luminance of the color conversion data corresponding to the peripheral unit pixels P2, 9, the luminance of the color conversion data corresponding to the peripheral unit pixels P2, 10 of the 2 rows and 10 columns, the luminance of the peripheral unit pixels P2, The luminance of the color conversion data corresponding to the peripheral unit pixels P2 and 12 in the 2 rows and 12 columns, the luminance of the color conversion data corresponding to the peripheral unit pixels P2 and 13 in the 2 rows and 13 columns, , The luminance of the color conversion data corresponding to the peripheral unit pixels (P2, 14) in the 2 rows and 14 columns and the luminance of the color conversion data corresponding to the peripheral unit pixels (P2, 15) in the 2 rows and 15 columns are compared with the fifth threshold luminance do. By this comparison, the number of color conversion data having a value less than or equal to the fifth threshold luminance is calculated. Then, the jagging area determining unit 302 determines whether the calculated number exceeds the fifth threshold number.

The jagging area determining unit 302 then defines the center unit pixel P3,8 as a jagging area when the determination result in the 9th step operation is true or the determination result in the 10th step operation is true Step 11 Perform the task.

On the other hand, as another method, the first stage work to the fifth stage work and the seventh stage work to the 10th stage work can be carried out completely for one central unit pixel (P3, 8) irrespective of the satisfaction of the preceding condition have. In this case, if the above-described step operations (the first-step operation to the fifth-step operation and the seventh-stage operation to the ten-step operation) are all performed, the final operation for judging the step operations as the jigging area Or 11 steps). Thereafter, if the step operations are satisfied with the final condition, the jigging area determining unit 302 finally determines the center unit pixel P3,8 as the jigging area. On the other hand, if the step operations do not match the final condition, the jigging area determining unit 302 finally determines the central unit pixel P3,8 as the non-jigging area.

In this way, the jigging area determining unit 302 performs the operations of the first to eleventh steps by applying the above-described window WD to all or some of the i * j unit pixels.

9A is a flowchart illustrating a method of setting a window WD for the center unit pixels P3 and 8 located at the edge when performing the operations of the first to eleventh steps for all i * j unit pixels FIG.

That is, when the window (WD) setting step and the one-step operation to the eleventh step operation as described above are performed for all of the i * j unit pixels, the window setting step and the one- The window WD which does not completely include the peripheral unit pixels required in the pixel unit WD is supplemented with the virtual peripheral unit pixels (CP) corresponding to the lacking peripheral unit pixels. Color conversion data of arbitrary gradation corresponding to the virtual peripheral unit pixels (CP) is set in advance.

FIG. 9B is a diagram for explaining a method of setting the window WD for the central unit pixels P3 and 8 when performing the one-step operation to the eleventh step operation on a part of the i * j unit pixels.

When the window WD setting step and the first stage work to the eleventh stage work are performed on some of the i * j unit pixels, the jagging area detecting apparatus JAD sets the window WD and the one- (WD) setting step and the above-described one-step operation to the eleventh step operation are selectively performed on only the unit pixel of the window (WD) completely including the peripheral unit pixels necessary for the 11th step operation. That is, as shown in FIG. 9B, the window WD setting step and the one-step operation to the eleventh step operation described above are performed only for the unit pixels UPXL located in the setting area SA.

By analyzing the left eye image data of one frame in this manner, it is possible to determine which of the left eye image data of the left eye image data is to be supplied to the unit pixel corresponding to the jigging area and which of the unit pixels corresponding to the non- Left jagging area information on whether or not the left jagging area information is to be supplied to the left jagging area information. In addition, by analyzing the right eye image data of one frame in the same manner, it is possible to determine which right eye image data of the right eye image data is to be supplied to the unit pixel corresponding to the jigging area and which unit of the right eye image data The right-eye gaging area information on whether to be supplied to the pixel is calculated. These pieces of information are the above-described jigging area information INF_JG, and this jagging area information INF_JG is supplied to the image correction unit IMD.

Then, the image correction unit IMD corrects the left eye image data of one frame based on the left eye jugging area information INF_JG. That is, the left eye image data to be supplied to the unit pixel determined as the jigging area is filtered and corrected using a low pass filter, and the left eye image data to be supplied to the unit pixel determined as the non- To generate corrected left-eye image data. In addition, the image correction unit IMD corrects the right eye image data of one frame based on the right eye gaging area INF_JG. That is, the right eye image data to be supplied to the unit pixel determined as the jigging area is filtered and corrected using the low pass filter, and the right eye image data to be supplied to the unit pixel determined as the non- Thereby generating right eye image data.

Then, the image correction unit IMD selects only the left eye image data (hereinafter, the odd left eye image data) to be supplied to the pixels of the odd-numbered horizontal line among the corrected left eye image data, Eye image data to be supplied to the pixels. In addition, the image correction unit IMD selects only right eye image data (hereinafter, right eye right eye image data) to be supplied to the pixels of the even horizontal line from the corrected right eye image data, The right eye image data to be supplied to the pixels of the right eye image. The odd-numbered left eye image data and the even-numbered right eye image data selected from the image correction unit (IMD) are provided to the timing controller.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the general inventive concept as defined by the appended claims and their equivalents. Will be clear to those who have knowledge of.

JAD: jagging area detecting device 301: color coordinate converter
302: Gagging area judging unit 3D-RGB: 3D image data
YCbCr: Color conversion data INF_JG: Gagging area information

Claims (24)

J * left eye RGB image data for 3-dimensional image display and i * j right eye RGB image data to be supplied to unit pixels of i * j (i and j are natural numbers) arranged in a matrix form, To generate i * j left eye color conversion data and i * j right eye color conversion data, which are YCbCr image data including luminance components and chrominance components;
One of the i * j unit pixels is defined as a center unit pixel, and k (k is a natural number smaller than i or j) surrounding the center unit pixel are defined as peripheral unit pixels Defining step B; And
Peripheral unit pixels located on the left and right sides of the center unit pixel, peripheral unit pixels positioned on the lower left and upper right sides of the center unit pixel, and pixel units located on the upper left and lower right sides of the center unit pixel, A step C for determining whether the center unit pixel corresponds to a jigging area based on a result of comparison of the number of color conversion data corresponding to peripheral unit pixels is performed by i * j left-eye RGB image data and i * j right- Wherein the step of performing the jagging detection is performed on the data. The method according to claim 1,
The central unit pixel and the k peripheral unit pixels are arranged to form a matrix of m * n (= k + 1); And,
Wherein the center unit pixel is a unit pixel located at the center of the m * n matrix. 3. The method of claim 2,
In the step C,
Wherein the number of color conversion data having a value less than or equal to a predetermined first threshold luminance among the color conversion data corresponding to peripheral unit pixels located on the left and right of the center unit pixel and the center unit pixel is set to a first threshold Step C-1 for judging whether the number exceeds the number
If the determination result in step C-1 is true, at least one of a plurality of horizontal groups including a plurality of peripheral unit pixels arranged in the horizontal direction and located at the lower left of the central unit pixel is selected, A C-2 step of determining whether the number of color conversion data having a value smaller than or equal to a predetermined second critical luminance among the color conversion data corresponding to peripheral unit pixels in the horizontal group exceeds a preset second threshold number, and Selecting at least one of a plurality of horizontal groups including a plurality of peripheral unit pixels arranged on the upper right side of the central unit pixel and arranged in the horizontal direction and outputting color conversion data corresponding to peripheral unit pixels in the selected horizontal group The number of color conversion data having a value smaller than or equal to the predetermined third threshold luminance among the plurality of color conversion data is set to a predetermined third threshold number Performing step C-3 to determine whether the value exceeds a predetermined threshold value or not;
If all of the determination results in step C-2 and step C-3 are true, it is determined whether or not the fourth threshold luminance of the color conversion data corresponding to peripheral unit pixels located on the upper left of the center unit pixel Performing C-4 step of determining whether the number of color conversion data having the same value exceeds a preset fourth threshold number or performing color conversion data corresponding to peripheral unit pixels located at the lower right side of the central unit pixel Performing a C-5 step of determining whether the number of color conversion data having a value equal to or greater than a predetermined fifth threshold luminance exceeds a predetermined fifth threshold number; And,
And a C-6 step of defining the center unit pixel as a jigging area when the determination result in step C-4 is true or the determination result in step C-5 is true. Way. The method of claim 3,
If the determination result in step C-1 is false, or if any of the determination results in step C-2 and step C-3 is false, or if the determination result in step C-4 and the determination result in step C- If all of the determination results in step (c) are false, the step (c)
Selecting at least one of a plurality of horizontal groups including a plurality of peripheral unit pixels arranged in a horizontal direction and located on a left upper side of the central unit pixel and outputting color conversion data corresponding to peripheral unit pixels in the selected horizontal group A step C-7 of determining whether the number of color conversion data having a value less than or equal to the second threshold brightness exceeds the second threshold number, Selecting at least one of a plurality of horizontal groups including a plurality of peripheral unit pixels and outputting color conversion data having a value smaller than the third threshold luminance among the color conversion data corresponding to peripheral unit pixels in the selected horizontal group (C-8) for determining whether the number of the first thresholds exceeds the third threshold number, sequentially or in reverse order;
If all of the determination results at step C-7 and step C-8 are true, it is determined whether or not the color conversion data corresponding to peripheral unit pixels located at the lower left of the center unit pixel is greater than or equal to the fourth threshold luminance Performing a C-9 step of determining whether the number of color conversion data having a value greater than the fourth threshold number is greater than the fourth threshold number, Performing a C-10 step of determining whether the number of color conversion data having a value equal to or greater than the fifth threshold luminance exceeds the fifth threshold number;
Further comprising a C-11 step of defining the center unit pixel as a jigging area when the determination result in step C-9 is true or the determination result in step C-10 is true. Detection method. 5. The method of claim 4,
In step C-11, if any one of the determination results in step C-7 and step C-8 is false, or if both the determination result in step C-9 and the determination result in step C- Wherein the center unit pixel is defined as a non-jigging region when the center unit pixel is false. 6. The method of claim 5,
The m * n matrix is a 5 * 15 matrix type window including 75 unit pixels;
The center unit pixel is a unit pixel located in 3 rows and 8 columns;
Peripheral unit pixels located on the left side of the center unit pixel are unit pixels located in the third row, sixth column and third row and seventh column in the window;
Peripheral unit pixels located on the right side of the center unit pixel are unit pixels located in the third row, the 9th column and the third row and the 10th column in the window;
When performing the step C-2, the first and second horizontal groups are located on the lower left side of the central unit pixel;
When performing the step C-2, the first horizontal group includes four rows and one column, four rows and two columns, four rows and three columns, four rows and four columns, four rows and five columns, four rows and six columns, The unit pixels located in the fourth row and the seventh column;
When performing the step C-2, the second horizontal group is divided into five rows and one column, five rows and two columns, five rows and three columns, five rows and four columns, five rows and five columns, five rows and six columns, The unit pixels located in the fifth row and the seventh column;
When performing the step C-3, the third and fourth horizontal groups are located on the upper right side of the central unit pixel;
When performing the step C-3, the third horizontal group includes one row and nine columns, one row and ten columns, one row and eleventh column, one row and twelfth column, one row and thirteenth column, one row and fourteenth columns, 1 < / RTI > row and 15 columns;
When performing the step C-3, the fourth horizontal group is divided into 2 rows and 9 columns, 2 rows and 10 columns, 2 rows and 11 columns, 2 rows and 12 columns, 2 rows and 13 columns, 2 rows and 14 columns, The unit pixels located in the second row and the 15th column;
In step C-4, the peripheral unit pixels located on the upper left side of the center unit pixel are arranged in the order of 1 row 1 column, 1 row 2 column, 1 row 3 column, 1 row 4 column, 1 row 5 Are unit pixels located in a column, a row 1, a column 6, a column 7, a column 2, a column 1, a column 2, a column 2, a column 3, a column 4, a column 2, a column 5, a column 6, ;
In step C-5, the peripheral unit pixels located at the lower right side of the central unit pixel are arranged in four rows, nine columns, four rows and ten columns, four rows and eleventh columns, four rows and twelve columns, four columns The unit pixels located in the columns 4, 14, 4, 15, 5, 9, 5, 10, 5, 11, 5, 12, 5, 13, 5, ;
When performing the step C-7, the fifth and sixth horizontal groups are located on the left upper side of the central unit pixel;
When performing the step C-7, the fifth horizontal group includes one row and one column, one row and two columns, one row and three columns, one row and four columns, one row and five columns, one row and six columns, A unit pixel located in a first column and a seventh column;
When performing the step C-7, the sixth horizontal group is divided into 2 rows and 1 column, 2 rows and 2 columns, 2 rows and 3 columns, 2 rows and 4 columns, 2 rows and 5 columns, 2 rows and 6 columns, The unit pixels located in the second row and the seventh column;
In the step C-8, the seventh and eighth horizontal groups are located on the upper right side of the central unit pixel;
When performing the step C-8, the seventh horizontal group is divided into 4 rows and 9 columns, 4 rows and 10 columns, 4 rows and 11 columns, 4 rows and 12 columns, 4 rows and 13 columns, 4 rows and 14 columns, The unit pixels located in the fourth row and the 15th column;
When performing the step C-8, the eighth horizontal group is divided into 5 rows and 9 columns, 5 rows and 10 columns, 5 rows and 11 columns, 5 rows and 12 columns, 5 rows and 13 columns, 5 rows and 14 columns, A unit pixel located in a fifth row and a fifteenth column;
When performing the step C-9, the peripheral unit pixels positioned at the lower left of the center unit pixel are arranged in the 4-row, 1-column, 4-row, 2-column, 4-row, 3-column, 4-row, 4-column, Are the unit pixels located in the columns, 4 rows and 6 columns, 4 rows 7 columns, 5 rows 1 columns, 5 rows 2 columns, 5 rows 3 columns, 5 rows 4 columns, 5 rows 5 columns, 5 rows 6 columns and 5 rows 7 ; And,
When performing the step C-10, the peripheral unit pixels positioned on the upper right side of the central unit pixel are arranged in a matrix of 1 row 9 columns, 1 row 10 columns, 1 row 11 columns, 1 row 12 columns, 1 row 13 The unit pixels located in the column 1, the row 1, the row 14, the row 15, the row 2, the row 9, the row 2 10, the row 2 11, the row 2 12, the row 2 13, the row 2 14, The jagged region detection method comprising: The method according to claim 6,
Each of the color conversion data has a value of one of gradations from the darkest 0 gradation to the brightest 255 gradation;
The first critical brightness, the second critical brightness, and the third critical brightness each have a gray level value corresponding to 30 gray levels;
The fourth critical luminance and the fifth critical luminance have tone values corresponding to 255 tones;
The first threshold number has a value of 3;
The second threshold number and the third threshold number each have a value of 4; And,
Wherein the fourth threshold number and the fifth threshold number each have a value of 5. 6. The method of claim 5,
Wherein the step B and the steps C-1 to C-11 are sequentially performed on all or a part of i * j unit pixels. 9. The method of claim 8,
When the step B and steps C-1 to C-11 are performed on all of the i * j number of unit pixels, it is necessary to completely include the peripheral unit pixels required in the step B and steps C-1 to C-11 The inferred n * m matrix is supplemented with virtual peripheral unit pixels corresponding to the deficient peripheral unit pixels;
Wherein color conversion data of an arbitrary gray level corresponding to the virtual peripheral unit pixels is set in advance. 9. The method of claim 8,
When the step B and the steps C-1 to C-11 are performed on some of the i * j unit pixels, the peripheral unit pixels required in the step B and the steps C-1 to C-11 are completely included wherein the step B and the steps C-1 to C-11 are selectively performed on only the unit pixels of the n * m matrix. delete delete J * left eye RGB image data for 3-dimensional image display and i * j right eye RGB image data to be supplied to unit pixels of i * j (i and j are natural numbers) arranged in a matrix form, To generate i * j left eye color conversion data and i * j right eye color conversion data, which are YCbCr image data including a luminance component and a chrominance component; And
One of the i * j unit pixels is defined as a center unit pixel, and k (k is a natural number smaller than i or j) surrounding the center unit pixel are defined as peripheral unit pixels Peripheral unit pixels located on the left and right sides of the center unit pixel, peripheral unit pixels located on the lower left and right side of the center unit pixel, and upper left and lower right unit pixels of the center unit pixel, Based on the comparison result of the number of i * j left eye color conversion data and the number of i * j right eye color conversion data corresponding to the peripheral unit pixels located at the side of the center unit pixel, And a jiggling area determining unit for determining a jiggling area of the jigging area. 14. The method of claim 13,
The central unit pixel and the k peripheral unit pixels are arranged to form a matrix of m * n (= k + 1); And,
Wherein the center unit pixel is a unit pixel located at the center of the m * n matrix. 15. The method of claim 14,
The jigging area determining unit may determine,
Wherein the number of color conversion data having a value less than or equal to a predetermined first threshold luminance among the color conversion data corresponding to peripheral unit pixels located on the left and right of the center unit pixel and the center unit pixel is set to a first threshold Step C-1 for judging whether the number exceeds the number
If the determination result in step C-1 is true, at least one of a plurality of horizontal groups including a plurality of peripheral unit pixels arranged in the horizontal direction and located at the lower left of the central unit pixel is selected, A C-2 step of determining whether the number of color conversion data having a value smaller than or equal to a predetermined second critical luminance among the color conversion data corresponding to peripheral unit pixels in the horizontal group exceeds a preset second threshold number, and Selecting at least one of a plurality of horizontal groups including a plurality of peripheral unit pixels arranged on the upper right side of the central unit pixel and arranged in the horizontal direction and outputting color conversion data corresponding to peripheral unit pixels in the selected horizontal group The number of color conversion data having a value smaller than or equal to the predetermined third threshold luminance among the plurality of color conversion data is set to a predetermined third threshold number Performing step C-3 to determine whether the value exceeds a predetermined threshold value or not;
If all of the determination results in step C-2 and step C-3 are true, it is determined whether or not the fourth threshold luminance of the color conversion data corresponding to peripheral unit pixels located on the upper left of the center unit pixel Performing C-4 step of determining whether the number of color conversion data having the same value exceeds a preset fourth threshold number or performing color conversion data corresponding to peripheral unit pixels located at the lower right side of the central unit pixel Performing a C-5 step of determining whether the number of color conversion data having a value equal to or greater than a predetermined fifth threshold luminance exceeds a predetermined fifth threshold number; And,
If the determination result in step C-4 is true, or if the determination result in step C-5 is true, step C-6 of defining the center unit pixel as a jigging area is performed . 16. The method of claim 15,
If the determination result in step C-1 is false, or if any of the determination results in step C-2 and step C-3 is false, or if the determination result in step C-4 and the determination result in step C- If the determination result in step (a) is false, the jagging area determination unit determines,
Selecting at least one of a plurality of horizontal groups including a plurality of peripheral unit pixels arranged in a horizontal direction and located on a left upper side of the central unit pixel and outputting color conversion data corresponding to peripheral unit pixels in the selected horizontal group A step C-7 of determining whether the number of color conversion data having a value less than or equal to the second threshold brightness exceeds the second threshold number, Selecting at least one of a plurality of horizontal groups including a plurality of peripheral unit pixels and outputting color conversion data having a value smaller than the third threshold luminance among the color conversion data corresponding to peripheral unit pixels in the selected horizontal group (C-8) for determining whether the number of the first thresholds exceeds the third threshold number, sequentially or in reverse order;
If all of the determination results at step C-7 and step C-8 are true, it is determined whether or not the color conversion data corresponding to peripheral unit pixels located at the lower left of the center unit pixel is greater than or equal to the fourth threshold luminance Performing a C-9 step of determining whether the number of color conversion data having a value greater than the fourth threshold number is greater than the fourth threshold number, Performing a C-10 step of determining whether the number of color conversion data having a value equal to or greater than the fifth threshold luminance exceeds the fifth threshold number;
If the determination result in step C-9 is true or the determination result in step C-10 is true, step C-11 is performed to define the center unit pixel as a jigging area. Device. 17. The method of claim 16,
In step C-11, if any one of the determination results in step C-7 and step C-8 is false, or if both the determination result in step C-9 and the determination result in step C- And if it is false, the jagging area determining unit defines the center unit pixel as a non-jigging area. 18. The method of claim 17,
The m * n matrix is a 5 * 15 matrix type window including 75 unit pixels;
The center unit pixel is a unit pixel located in 3 rows and 8 columns;
Peripheral unit pixels located on the left side of the center unit pixel are unit pixels located in the third row, sixth column and third row and seventh column in the window;
Peripheral unit pixels located on the right side of the center unit pixel are unit pixels located in the third row, the 9th column and the third row and the 10th column in the window;
When the jigging area determining unit performs step C-2, the first and second horizontal groups are located at the lower left of the center unit pixel;
When the jogging area determining unit performs step C-2, the first horizontal group is divided into four rows and one column, four rows and two columns, four rows and three columns, four rows and four columns, four rows and five columns, four columns The unit pixels located in row 6 column and row 4 column 7;
When the image-shading area determination unit performs step C-2, the second horizontal group is divided into five rows and one column, five rows and two columns, five rows and three columns, five rows and four columns, five rows and five columns, 5, 6, and 5 columns;
When the jigging area determining unit performs step C-3, the third and fourth horizontal groups are positioned on the upper right side of the central unit pixel;
When the jogging area determining unit performs step C-3, the third horizontal group is divided into one row and nine columns, one row and ten columns, one row and eleventh column, one row and twelfth column, one row and thirteenth column, one A unit pixel located in a row 14 column and a 1 row 15 column;
When the jigging area determining unit performs step C-3, the fourth horizontal group is divided into two rows and nine columns, two rows and ten columns, two rows and eleventh columns, two rows and twelve columns, two rows and thirteen columns, two columns The unit pixels located in row 14 and column 2, row 15;
When the jigging area determination unit performs step C-4, the peripheral unit pixels positioned at the upper left of the center unit pixel are arranged in the order of 1 row 1 column, 1 row 2 column, 1 row 3 column, 1 row 4 column , 1 row 5 columns, 1 row 6 columns, 1 row 7 columns, 2 rows 1 column, 2 rows 2 columns, 2 rows 3 columns, 2 rows 4 columns, 2 rows 5 columns, 2 rows 6 columns and 2 rows 7 columns Unit pixels;
When the jigging area determining unit performs step C-5, the peripheral unit pixels located on the lower right side of the central unit pixel are arranged in four rows, nine columns, four rows and ten columns, four rows and eleventh columns, four rows and twelve columns , 4th row 13th column, 4th row 14th column, 4th row 15th column, 5th row 9th column, 5th row 10th column, 5th row 11th column, 5th row 12th column, 5th row 13th column, 5th row 14th column and 5th row 15th column Unit pixels;
When the jigging area determining unit performs step C-7, the fifth and sixth horizontal groups are located on the left upper side of the center unit pixel;
When the jagging area determining unit performs step C-7, the fifth horizontal group is divided into a first row and a first column, a first row and a second column, a first row and a third column, a first row and a fourth column, a first row and a fifth column, Row 6 column and column 1 row 7 columns;
When the jigging area determining unit performs step C-7, the sixth horizontal group is divided into two rows and one column, two rows and two columns, two rows and three columns, two rows and four columns, two rows and five columns, two columns The unit pixels located in row 6 column and 2 row 7 column;
When the jigging area determining unit performs step C-8, the seventh and eighth horizontal groups are located on the upper right side of the central unit pixel;
When the jigging area determining unit performs step C-8, the seventh horizontal group is divided into 4 rows and 9 columns, 4 rows and 10 columns, 4 rows and 11 columns, 4 rows and 12 columns, 4 rows and 13 columns, and 4 columns The unit pixels located in row 14 and column 4, row 15;
When the jigging area determining unit performs step C-8, the eighth horizontal group is divided into 5 rows and 9 columns, 5 rows and 10 columns, 5 rows and 11 columns, 5 rows and 12 columns, 5 rows and 13 columns, and 5 columns Unit pixels located in row 14 and column 5, row 15;
When the jigging area determination unit performs step C-9, the peripheral unit pixels positioned at the lower left of the center unit pixel are arranged in the 4-row, 1-column, 4-row, 2-column, 4-row, 3-column, , 4 rows 5 columns, 4 rows 6 columns, 4 rows 7 columns, 5 rows 1 columns, 5 rows 2 columns, 5 rows 3 columns, 5 rows 4 columns, 5 rows 5 columns, 5 rows 6 columns and 5 rows 7 Unit pixels; And,
When the jigging area determining unit performs step C-10, the peripheral unit pixels located on the upper right side of the central unit pixel are arranged in a row of 9 rows, 1 row 10 columns, 1 row 11 columns, 1 row 12 columns , Row 1, row 13, row 1, row 14, row 1, column 15, column 2, column 9, column 2, column 10, column 2, column 11, column 2, column 12, column 2, column 13, column 2, column 14, Wherein the unit pixels are located in the unit area. 19. The method of claim 18,
Each of the color conversion data has a value of one of gradations from the darkest 0 gradation to the brightest 255 gradation;
The first critical brightness, the second critical brightness, and the third critical brightness each have a gray level value corresponding to 30 gray levels;
The fourth critical luminance and the fifth critical luminance have tone values corresponding to 255 tones;
The first threshold number has a value of 3;
The second threshold number and the third threshold number each have a value of 4; And,
Wherein the fourth threshold number and the fifth threshold number each have a value of 5. 18. The method of claim 17,
The jigging area determining unit may define one of the i * j unit pixels as a center unit pixel for all or a part of i * j unit pixels, (i) or (j) is defined as peripheral unit pixels, and (C-1) to (C-11) are sequentially performed. 21. The method of claim 20,
When the step B and steps C-1 to C-11 are performed on all of the i * j number of unit pixels, it is necessary to completely include the peripheral unit pixels required in the step B and steps C-1 to C-11 The inferred n * m matrix is supplemented with virtual peripheral unit pixels corresponding to the deficient peripheral unit pixels;
Wherein the color conversion data of any gradation corresponding to the virtual peripheral unit pixels is set in advance. 21. The method of claim 20,
When the step B and the steps C-1 to C-11 are performed on some of the i * j number of unit pixels, the jagging region detecting device performs the steps B, C-1 to C-11 And performing steps B, C-1 to C-11 described above only for the unit pixel of the n * m matrix including the surrounding unit pixels completely. delete delete

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