KR102107060B1 - Method, apparatus and system for processing image data - Google Patents

Abstract

Disclosed is device for processing image data located outside a display and a driver IC. According to one embodiment of the present invention, the device for processing image data may correct an input value so that a corrected image may be displayed on a display. The device for processing the image data comprises: a receiver; a processor; and a memory.

Description

Method, apparatus and system for processing image data}

This disclosure discloses a method, apparatus, and system for processing image data.

The display is to display information through a screen, and is widely used in various devices such as home appliances, smart phones, and monitors. Because the display provides information through an image, the range of use is very wide, and the resolution realized by a real product continues to increase.

In particular, in recent years, as the demand for mobile communication terminals such as mobile phones and PDAs continues to spread, the display market mounted on the mobile communication terminals is expanding exponentially.

However, since the probability of occurrence of physical defects in the manufacturing process of the display is high, various techniques for alleviating or eliminating physical defects in software have been developed.

The present disclosure can provide a method, apparatus and system for processing image data. Specifically, a method and apparatus for determining a correction value for correcting an output value are disclosed. In particular, a method is proposed in which a correction value is determined by using an image data processing apparatus located outside the display, and a correction input value or an additional correction input value is applied to the determined driver IC included in the display.

 The technical problem to be solved is not limited to the technical problems as described above, and various technical problems may be further included within the scope apparent to those skilled in the art.

An image data processing apparatus according to a first aspect of the present disclosure is used for correction of a display, and a receiver for obtaining output values of pixels included in the display; The pixels are divided into predetermined units to determine a plurality of unit blocks, a gain value and an offset value are determined for the plurality of unit blocks, and the plurality of unit blocks are used using the gain value and the offset value. A processor that corrects an input value for the pixels included in the image to obtain a correction input value, and applies the correction input value to a driver IC included in the display through an external communication line; And a memory storing the gain value and the offset value.

In addition, the display and the driver IC may be located outside.

Further, the driver IC may be connected to the display through an internal communication line.

In addition, the input value corresponds to a preset gray value, and the processor may determine the gain value and the offset value based on a difference between the reference value and the output value corresponding to the preset gray value.

In addition, when the correction input value includes a fractional portion, the processor performs rounding up or down on the fractional portion based on a correction root (LUT) value corresponding to the pixels,

An additional correction input value additionally corrected according to the result of performing the raising or lowering may be applied to the driver IC.

Further, the correction input value may correspond to a value obtained by multiplying the input value by the gain value and adding the offset value.

Also, the correction route value may be determined according to the number of pixels included in the unit block.

In addition, the correction route value is 0 or more, and may include an integer value smaller than the number of pixels included in the unit block.

The image data processing method used for the correction of the display according to the second aspect includes obtaining an output value of pixels included in the display; Dividing the pixels into predetermined units to determine a plurality of unit blocks; Determining a gain value and an offset value for the plurality of unit blocks; Correcting input values for the pixels included in the plurality of unit blocks using the gain value and the offset value to obtain a corrected input value; And applying the correction input value to the driver IC included in the display.

An image data processing system according to a third aspect includes a display including a driver IC; And a receiver that obtains output values of pixels included in the display. The pixels are divided into predetermined units to determine a plurality of unit blocks, a gain value and an offset value are determined for the plurality of unit blocks, and the plurality of unit blocks are used using the gain value and the offset value. A processor that corrects an input value for the pixels included in the image to obtain a correction input value, and applies the correction input value to the driver IC; And a memory for storing the gain value and the offset value; wherein the image data processing device is located outside the display, and the image data processing device is in external communication with the driver IC. It can be connected via a line.

The fourth aspect of the present disclosure can provide a computer program stored in a recording medium to implement the method according to the second aspect. Alternatively, the fourth aspect of the present disclosure may provide a computer-readable recording medium recording a program for executing a method according to the second aspect on a computer.

The present disclosure can provide a method, apparatus and system for processing image data. Specifically, a method and apparatus for determining a correction value for correcting an output value are disclosed. In particular, a correction value is determined using an image data processing device located outside the display, and correction is performed on the display by applying a correction input value or an additional correction input value to the determined correction value to the driver IC included in the display. Even if the device is not included, the effect of the correction can be confirmed.

1 is a conceptual diagram illustrating an operation of the image data processing apparatus 100 according to an embodiment.
2 is a block diagram showing an example of a configuration of an image data processing apparatus 100 according to an embodiment.
FIG. 3 is a diagram illustrating an example implemented by a computer in which the image data processing apparatus 100 according to an embodiment is commonly used.
4 is a graph showing a relationship between an input value and an output value of a first pixel included in the display 10 according to an embodiment.
5 is a graph illustrating a relationship between an input value and a correction input value according to a gain value and an offset value according to an embodiment.
6 is a diagram for explaining an example of determining a route value used when the image data processing apparatus 100 further corrects a correction input value as an additional correction input value according to an embodiment.
7 is a flowchart illustrating a method in which the image data processing apparatus 100 processes image data according to an embodiment.

The terminology used in the embodiments has been selected for general terms that are currently widely used while considering functions in the present invention, but this may be changed according to the intention or precedent of a person skilled in the art or the appearance of new technology. In addition, in certain cases, some terms are arbitrarily selected by the applicant, and in this case, their meanings will be described in detail in the description of the applicable invention. Therefore, the terms used in the present invention should be defined based on the meanings of the terms and the contents of the present invention, not simply the names of the terms.

When a certain part of the specification “includes” a certain component, this means that other components may be further included instead of excluding the other component, unless specifically stated to the contrary. Also, “… Wealth ”,“… The term “module” means a unit that processes at least one function or operation, which may be implemented in hardware or software, or a combination of hardware and software.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art to which the present invention pertains may easily practice. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

1 is a conceptual diagram illustrating an operation of the image data processing apparatus 100 according to an embodiment.

The imaging device 20 according to an embodiment may obtain an output value (eg, a luminance value) of pixels or blocks included in the display 10 through imaging. The imaging device 20 according to an embodiment may obtain an output value of pixels or blocks through imaging. The output value may include various values that can be obtained (eg, measured, received, photographed) from pixels or blocks, such as a luminance value, a red component value, a green component value, and a blue component value. In addition, since a block is composed of pixels, an embodiment of obtaining output values of blocks may be an example of an embodiment of obtaining output values of pixels.

In addition, the image data processing apparatus 100 may correct an input value applied to the driver IC 11 included in the display 10 using the output values of the pixels received from the imaging apparatus 20. Specifically, the image data processing apparatus 100 corrects an input value applied to pixels included in a plurality of unit blocks using a gain value and an offset value to obtain a correction input value, and includes the correction input value in a display The driver IC can be applied through an external communication line.

The driver IC 11 may be included in the display 10. Therefore, the driver IC 11 and the display 10 can be connected through an internal communication line. However, the image data processing apparatus 100 may be located outside the display 10 and the driver IC 11. Therefore, the image data processing apparatus 100 may be connected to the driver IC 11 through an external communication line.

The image data processing apparatus 100 that performs correction on the input value is generally located inside the display 10. When the image data processing apparatus 100 is located inside the display 10, it is possible to compensate for such defects even when some pixels of the display 10 have defects. However, in order for the image data processing apparatus 100 to be positioned inside the display 10, the size of the image data processing apparatus 100 must be very small, and data for correction to the image data processing apparatus 100 (eg, a gain value) , Offset value) is difficult to record. This is because the size of the image data processing apparatus 100 is small and relatively cumbersome procedures are required to record data in the memory included in the image data processing apparatus 100.

In addition, when the image data processing apparatus 100 is included in the display 10, the effect of the correction can be confirmed by operating the image data processing apparatus 100 included in the display 10, but the image data is displayed on the display 10. When the processing apparatus 100 is not included, it is difficult to confirm the effect of the correction.

However, as shown in FIG. 1, when the image data processing apparatus 100 is located outside the display 10, the display 10 is displayed even when the display 10 does not include the image data processing apparatus 100. For 10), the effect of correction can be confirmed. In addition, when the image data processing apparatus 100 is located outside the display 10, the image data processing apparatus 100 is limited in space and the like because data (eg, gain value, offset value, correction input value, etc.) ) Is easy to implement such as recording and deletion. In addition, when the image data processing apparatus 100 is located outside the display 10, since there is no limit to the size of the image data processing apparatus 100, a commonly used computer or the like also operates as the image data processing apparatus 100. can do. By connecting the computer to the display 10 and allowing the computer to perform the operation of the image data processing apparatus 100, it is possible to simulate the results of performing the correction on the display 10. It is possible to display the image on which the correction is implemented on the display 10 without having to record a gain value, an offset value, etc. in the memory included in the display 10. It may be easier to write data to the memory included in the image data processing apparatus 100 located outside the display 10 than to write data to the memory included in the display 10.

In addition, although the display 10 does not implement the correction function, the image data processing apparatus 100 located outside the display 10 implements the correction function on the display 10 by simulation, resulting in unexpected errors. The situation can be supplemented additionally. For example, the image data processing apparatus 100 may obtain a newly optimized gain value and offset value by correcting the gain value and offset value used initially according to simulation results.

2 is a block diagram showing an example of a configuration of an image data processing apparatus 100 according to an embodiment.

As shown in FIG. 2, the image data processing apparatus 100 may include a receiver 110, a processor 120, and a memory 130.

However, those of ordinary skill in the relevant arts may understand that other general-purpose components may be further included in the image data processing apparatus 100 in addition to the components illustrated in FIG. 2. For example, the image data processing device 100 may include the imaging device 20 as its component. Or, according to another embodiment, it can be understood by those of ordinary skill in the relevant art that some of the components shown in FIG. 2 may be omitted.

Also, the display 10 may include a driver IC 11.

The display 10 may mean a device for displaying an image comprehensively. For example, the display 10 may be included in a smart phone, personal digital assistant (PDA), notebook, tablet PC, e-book, portable multimedia player (PMP), netbook, monitor, or the like. As another example, the display 10 includes a liquid crystal display, a thin film transistor-liquid crystal display, an organic light-emitting diode, a flexible display, and a three-dimensional display. It may be a display (3D display), an electrophoretic display (electrophoretic display).

The driver IC 11 may refer to a device that lights a pixel included in the display 10 in a comprehensive manner. For example, the driver IC 11 may perform an operation of receiving data and lighting a pixel by applying a voltage corresponding to the received data to the pixel.

The receiver 110 may obtain output values of pixels included in the display 10. The receiver 110 may obtain an output value from the imaging device 20. The output value may be a value in a predetermined format that the imaging device 20 obtains from the display 10. For example, the output value of pixels may be a luminance value, but is not limited thereto.

The processor 120 may divide pixels into predetermined units to determine a plurality of unit blocks.

For example, four pixels may be divided into one unit, and in another example, 16 pixels may be divided into one unit, but is not limited thereto. The number of pixels included in the unit block may be determined in advance.

The processor 120 may determine gain values and offset values for a plurality of unit blocks. According to an embodiment, the gain value and the offset value may be individually determined for each of the unit blocks. Also, the gain value and the offset value may be used for correction of pixels included in the corresponding unit block.

Specifically, the processor 120 may obtain a correction input value by correcting an input value for pixels included in a plurality of unit blocks using a gain value and an offset value. For example, when the input value is k, the gain value is a, and the offset value is b, the processor 120 may determine the correction input value as “a * k + b”. When the ideal output value for the input value k is x, the output value for the input value k may not be x due to pixel defects. At this time, the processor 120 may obtain an ideal output value (or an output value close to the ideal output value) by correcting the input value using a gain value and an offset value. Specifically, when an input value of k is to be applied, the processor 120 may obtain an output value of x by inputting a * k + b instead of the input value of k.

Since the amount of memory required to determine the gain value and the offset value for each pixel is increased, according to an embodiment, the gain value and the offset value may be determined for each unit block, but is not limited thereto.

As described above, the correction input value may correspond to a value obtained by multiplying the input value by a gain value and then adding an offset value, but is not limited thereto. In addition, when the values used for the correction are the gain value and the offset value, the correction in the first-order form is actually performed, but when the values used for the correction are three or more, the correction may be performed in the form of the second-order or higher equation.

The input value corresponds to a preset gray value, and the processor 120 may determine a gain value and an offset value based on the difference between the reference value and the output value corresponding to the preset gray value. In the above example, when the input value before correction is k and the input value after correction is m, the processor 120 may determine a gain value and an offset value to make k m.

When an input value is corrected using a gain value and an offset value to obtain a correction input value, the correction input value may include a decimal value according to the gain value and the offset value. When the correction input value includes a fractional portion, the processor 120 may obtain an additional correction input value by rounding up or down a fractional portion based on a correction root (LUT) value corresponding to pixels. In addition, the processor 120 may apply an additional corrected additional correction input value to the driver IC 11 according to the result of performing the raising or lowering.

The processor 120 may apply the correction input value (or additional correction input value) to the driver IC 11 included in the display 10 through an external communication line. For example, the processor 120 may apply a correction input value (or an additional correction input value) to the driver IC 11 through a predetermined type of cable (eg, HDMI, etc.).

Further, the correction route value may be determined according to the number of pixels included in the unit block. For example, the correction route value may be determined as an integer value smaller than the number of pixels included in the unit block.

As a specific example, the correction route value is 0 or more, and may include an integer value smaller than the number of pixels included in the unit block. For example, when the number of pixels included in the unit block is four, the correction route values corresponding to the four pixels may be 0, 1, 2, 3, respectively. As another example, when the number of pixels included in the unit block is 16, correction root values corresponding to 16 pixels are 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, respectively. 12, 13, 14, 15. As another example, when the number of pixels included in the unit block is 4, the correction route values corresponding to the 4 pixels may be 0, 1, 2, 2, respectively. However, the example in which the correction route value is determined is not limited to the above-described example.

The processor 120 or the display 10 may use a look up table (LUT) when determining an output value according to an input value.

For example, when the correction input value is a prime number, the processor 120 or the display 10 applies an additional correction input by applying the pixels to the decimal portion by rounding up or down based on the correction LUT value corresponding to the pixels. The value can be determined.

For example, when the correction input value for the first pixel is 25.6, the fractional part is 0.6, and is corrected by comparing the result value of applying 0.6 to the first equation and the LUT value for the first pixel determined according to the second equation. You can update the input value to 25.0 or 26.0. For example, when the result of applying 0.6 to the first expression is 2.4 (eg 0.6 * 4 = 2.4), and the LUT value for the first pixel determined according to the second expression is 0, the processor 120 or The display 10 may update the correction input value to 26.0 and apply it to the first pixel.

As another example, when the correction input value for the first pixel is 25.5, the fractional part is 0.5, and the result is obtained by applying 0.5 to the first equation and the LUT value for the first pixel determined according to the second equation is compared and corrected. You can update the input value to 25.0 or 26.0. For example, when the result value of applying 0.5 to the first equation is 2.0 (eg 0.5 * 4 = 2.0), and the LUT values for the first pixel determined according to the second equation are equal to 2, the processor 120 ) Or the display 10 may update the correction input value to 25.0 and apply it to the first pixel.

This embodiment can be equally applied when updating the additional correction input value.

Also, the LUT value may be determined according to the second equation and the position of the pixel on the block (eg, upper left, upper right, lower left, lower right, etc.).

For example, the processor 120 compares a value obtained by multiplying a fractional portion of the correction input value with a preset value and a root value corresponding to a pixel to perform a rounding on the fractional portion when the root value is small and the root value is If it is greater than or equal to the number, the fractional part can be rounded down.

The term "processor" should be broadly interpreted to include general purpose processors, central processing units (CPUs), microprocessors, digital signal processors (DSPs), controllers, microcontrollers, state machines, and the like. In some environments, “processor” may refer to an application specific semiconductor (ASIC), a programmable logic device (PLD), a field programmable gate array (FPGA), and the like. The term "processor" refers to a combination of processing devices, such as, for example, a combination of a DSP and microprocessor, a combination of multiple microprocessors, a combination of one or more microprocessors in combination with a DSP core, or any other combination of such configurations. It can also be referred to.

The image data processing apparatus 100 may include a memory 130. The memory 130 may be widely interpreted to include any electronic component capable of storing electronic information. The memory 130 according to an embodiment includes random access memory (RAM), read-only memory (ROM), non-volatile random access memory (NVRAM), programmable read-only memory (PROM), and erase-programmable read It may also refer to various types of processor-readable media such as dedicated memory (EPROM), electrically erasable PROM (EEPROM), flash memory, magnetic or optical data storage, registers, and the like. If the processor 120 can read information from the memory 130 and / or write information to the memory 130, it can be said that the memory 130 is in electronic communication with the processor 120. The memory 130 integrated in the processor 120 is in electronic communication with the processor 120.

The memory 130 may store gain and offset values. Since the memory 130 is located outside the display 10, the memory 130 may be implemented regardless of the size of the display 10. Accordingly, unlike the case where the memory 130 is located inside the display 10, the memory 130 may be implemented without limitation in size.

2, an image data processing system including a display 10, an imaging device 20, and an image data processing device 100 is disclosed. As can be seen in FIG. 2, in the image data processing system, the display 10 and the image data processing apparatus 100 are implemented separately from each other, and the display 10 and the image data processing apparatus 100 are through an external communication line. Can be connected.

FIG. 3 is a diagram illustrating an example implemented by a computer in which the image data processing apparatus 100 according to an embodiment is commonly used. Referring to FIG. 3, the image data processing apparatus 100 may be implemented by a computer that is commonly used. If the algorithm required by the image data processing apparatus 100 can be implemented, the image data processing apparatus 100 may be implemented with various types of devices.

4 is a graph showing a relationship between an input value and an output value of a first pixel included in the display 10 according to an embodiment.

When the input value of the first point 610 of the first pixel representing the characteristic of the graph of FIG. 4 is applied, the output value of the first point 610 may be output. However, the ideal output value for the input value of the first point 610 may be the output value of the second point 620. Accordingly, the processor 120 may obtain a correction input value by correcting an input value of the first point 610 to an input value of the second point 620. At this time, when correcting the input value of the first point 610 to a correction input value that is an input value to the second point 620, a gain value and an offset value may be used.

Specifically, the processor 120 may determine a gain value and an offset value based on the difference between the input value of the first point 610 and the input value of the second point 620.

In FIG. 4, only the first pixel is described, but the same algorithm may be implemented for multiple pixels. For example, the contents described in FIG. 4 may also be applied to the second pixel, the third pixel, and the like.

In addition, as a result of applying the above technique to multiple pixels, the processor 120 may determine gain values and offset values generally applied to multiple pixels.

Specifically, referring to FIG. 5, a gain value and an offset value according to an embodiment are disclosed. 5 is a graph illustrating a relationship between an input value and a correction input value according to a gain value and an offset value according to an embodiment.

As shown in FIG. 5, when updating the input value to the correction input value, a gain value (a) and an offset value (b) may be used.

The gain value (a) and the offset value (b) may be used when updating an input value applied to a plurality of pixels to a correction input value. In FIG. 5, correction of an input value is performed using only a gain value and an offset value according to one embodiment, but more factors may be used according to another embodiment. If three or more factors are used, the graph can be shown in the form of a multi-order equation.

6 is a view for explaining an example of determining a route value used when the image data processing apparatus 100 further corrects a correction input value as an additional correction input value according to an embodiment.

Referring to FIG. 6, different coordinate values may correspond to each pixel included in the unit block.

Coordinate values for each pixel may be arbitrarily determined. 6 illustrates an example in which coordinate values for each pixel are sequentially determined, but coordinate values for each pixel may be determined according to an arbitrary determination method.

The root value corresponding to the current pixel may be determined according to the relative position of the current pixel in the current block and the size of the current block. Coordinate values for each pixel may indicate the relative position of the current pixel within the current block.

Also, a coordinate value for each pixel may be used when determining a root value for each pixel. For example, the root value for each pixel may be determined as a value obtained by multiplying the vertical coordinate value of each pixel by the horizontal size of the unit block and the horizontal coordinate value of each pixel. As an example of (2,1) pixels, the coordinate value of (2,1) pixels is (2, 1), and the horizontal size of the unit block is 4, so the root value of (2,1) pixels is 1 (vertical It can be 6, which is the sum of 2 (horizontal coordinate value) multiplied by 4 (horizontal size of the unit block).

As another example, the root value for each pixel may be determined as a value obtained by multiplying the horizontal coordinate value of each pixel by the horizontal size of the unit block and the vertical coordinate value of each pixel. As an example of (2,1) pixels, the coordinate value of (2,1) pixels is (2, 1), and the horizontal size of the unit block is 4, so the root value of (2,1) pixels is 2 (horizontal Coordinate value) times 4 (horizontal size of unit block) plus 1 (vertical coordinate value) plus 9.

As another example, the root value for each pixel may be determined as a value obtained by multiplying the vertical coordinate value of each pixel by the vertical size of the unit block and the horizontal coordinate value of each pixel. As an example of (1, 3) pixels, the coordinate value of (1, 3) pixels is (1, 3), and the vertical size of the unit block is 4, so the root value of (1, 3) pixels is 3 times 4 It may be 13, which is 1 plus.

As another example, the root value for each pixel may be determined as a value obtained by multiplying the horizontal coordinate value of each pixel by the vertical size of the unit block and the vertical coordinate value of each pixel. As an example of (1, 3) pixels, the coordinate value of (1, 3) pixels is (1, 3), and the vertical size of the unit block is 4, so the root value of (1, 3) pixels is 1 times 4 It can be 7, which is 3 plus.

7 is a flowchart illustrating a method in which the image data processing apparatus 100 processes image data according to an embodiment.

7 may be understood with reference to all embodiments in which the image data processing apparatus 100 disclosed in FIGS. 1 to 6 operates.

In operation S710, the image data processing apparatus 100 according to an embodiment acquires output values of pixels included in the display. The output values of the pixels may include various values that can be obtained (eg, measured, received, photographed) from pixels or blocks, such as luminance values, red component values, green component values, and blue component values.

In operation S720, the image data processing apparatus 100 according to an embodiment determines a plurality of unit blocks by dividing the pixels into predetermined units.

For example, the image data processing apparatus 100 may divide four pixels into one unit, and another example, may divide 16 pixels into one unit, but is not limited thereto. The number of pixels included in the unit block may be determined in advance.

In operation S730, the image data processing apparatus 100 according to an embodiment determines a gain value and an offset value for a plurality of unit blocks.

According to an embodiment, the gain value and the offset value may be individually determined for each of the unit blocks. Also, the gain value and the offset value may be used for correction of pixels included in the corresponding unit block.

In operation S740, the image data processing apparatus 100 according to an embodiment corrects an input value for pixels included in a plurality of unit blocks using a gain value and an offset value to obtain a correction input value.

For example, when the input value is k, the gain value is a, and the offset value is b, the image data processing apparatus 100 may determine the correction input value as “a * k + b”. When the ideal output value for the input value k is x, the output value for the input value k may not be x due to pixel defects. At this time, the image data processing apparatus 100 may obtain an ideal output value (or an output value close to the ideal output value) by correcting the input value using a gain value and an offset value. Specifically, when the input value k is to be applied, the image data processing apparatus 100 may obtain a output value x by inputting a * k + b instead of the input value k.

In step S750, the image data processing apparatus 100 according to an embodiment applies a correction input value to the driver IC 11 included in the display 10. Alternatively, the image data processing apparatus 100 may apply the additional correction input value obtained by additionally correcting the correction input value to the driver IC 11.

Meanwhile, the above-described method may be implemented as a program executable on a computer, and may be implemented on a general-purpose digital computer that operates the program using a computer-readable recording medium. In addition, the structure of data used in the above-described method may be recorded on a computer-readable recording medium through various means. The computer-readable recording medium includes a storage medium such as a magnetic storage medium (eg, ROM, RAM, USB, floppy disk, hard disk, etc.), optical reading media (eg, CD-ROM, DVD, etc.). do.

Those of ordinary skill in the art related to this embodiment will understand that it may be implemented in a modified form without departing from the essential characteristics of the above-described substrate. Therefore, the disclosed methods should be considered in terms of explanation, not limitation. The scope of the present invention is shown in the claims rather than the foregoing description, and all differences within the equivalent range should be interpreted as being included in the present invention.

10: display 20: imaging device
11: Driver IC
100: image data processing device 110: receiver
120: processor 130: memory

Claims (11)

In the image data processing apparatus used for the calibration of the display,
A receiver that acquires output values of pixels included in the display;
The plurality of unit blocks are determined by dividing the pixels into predetermined units,
Gain and offset values are determined for the plurality of unit blocks,
A correction input value is obtained by correcting an input value for the pixels included in the plurality of unit blocks using the gain value and the offset value,
A processor that applies the correction input value to a driver IC included in the display through an external communication line; And
Includes; a memory for storing the gain value, the offset value,
The processor simulates a result of application of the correction input value to obtain a new gain value and a new offset value, and corrects the input value for the pixels using the new gain value and the new offset value,
An image data processing device located outside the driver IC and the display.
According to claim 1,
The processor
And updating the correction input value according to a comparison result between a value obtained by multiplying a fractional portion of the correction input value with a preset value and a correction root (LUT) value corresponding to a corresponding pixel.
According to claim 1,
And the driver IC is connected to the display through an internal communication line.
According to claim 1,
The input value corresponds to a preset gray value,
The processor
And determining the gain value and the offset value based on the difference between the reference value and the output value corresponding to the preset gray value.
The method of claim 4,
The processor
When the correction input value includes a fractional portion, the fractional portion is rounded up or down based on a correction root (LUT) value corresponding to the pixels,
An image data processing apparatus for applying an additional corrected additional correction input value to the driver IC according to the result of performing the raising or lowering.
According to claim 1,
The correction input value corresponds to a value obtained by multiplying the input value by the gain value and then adding the offset value.
The method of claim 5,
The correction route value is determined according to the number of pixels included in the unit block, the image data processing apparatus.
The method of claim 7,
The correction route value is greater than or equal to 0 and includes an integer value smaller than the number of pixels included in the unit block.
In the image data processing method used for the calibration of the display,
Obtaining output values of pixels included in the display;
Dividing the pixels into predetermined units to determine a plurality of unit blocks;
Determining a gain value and an offset value for the plurality of unit blocks;
Correcting input values for the pixels included in the plurality of unit blocks using the gain value and the offset value to obtain a corrected input value;
Applying the correction input value to a driver IC included in the display;
Obtaining a new gain value and a new offset value by simulating a result of applying the correction input value; And
And correcting an input value for the pixels using the new gain value and the new offset value,
The apparatus for performing the image data processing method is located outside the driver IC and the display, the image data processing method.
A computer program stored on a record carrier to implement the method of claim 9.
A display including a driver IC; And
A receiver that acquires output values of pixels included in the display;
The plurality of unit blocks are determined by dividing the pixels into predetermined units,
Gain and offset values are determined for the plurality of unit blocks,
A correction input value is obtained by correcting an input value for the pixels included in the plurality of unit blocks using the gain value and the offset value,
A processor that applies the correction input value to the driver IC; And
And an image data processing apparatus including a memory storing the gain value and the offset value.
The image data processing apparatus is located outside the driver IC and the display, and the image data processing apparatus is connected to the driver IC through an external communication line,
The processor simulates a result of the application of the correction input value to obtain a new gain value and a new offset value, and corrects the input value for the pixels using the new gain value and the new offset value. Data processing system.

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