JP2008147931A - Setting method for adjustment parameter, and display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To allow a user to easily adjust the image quality to correspond to any scene, by visualizing the effect of adjustment parameters for a featured portion, by cutting out a part of an arbitrary image. <P>SOLUTION: In the setting method of adjustment parameter, an arbitrary portion of an arbitrary image is cut out and is saved into a memory 16, and two kinds of images, those before parameter is changed and after parameter is changed, are displayed for cut-out portions, respectively, thereby changing of a plurality of parameters are applied and displayed in real time. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an adjustment parameter setting method suitable for application to an adjustment unit for contrast, sharpness, hue, and the like, and a display device capable of setting adjustment parameters, for example, when adjusting the image quality of a display image.

  Conventionally, for example, a display device such as a television receiver has been provided with an image quality adjustment unit such as contrast, sharpness, and hue. The user can adjust the contrast, sharpness, color tone, and the like by operating an adjustment knob or an adjustment key provided on the receiver main body or the remote control transmitter, and can obtain an image quality desired by the user.

For example, in Patent Document 1, when image quality adjustment is started, the value of the image quality adjustment parameter is stored in the memory, the video signal at that time is recorded in the HDD, and the adjustment parameter value after the change by the user operation is stored. The video signal at that time is recorded in the HDD, and then each video signal recorded in the HDD is sequentially read out and supplied to the display unit. In this state, the user can select an image based on each video signal. An information signal processing apparatus is described in which the image quality of the images can be compared, and an image having a desired image quality can be easily selected.
JP 2002-300617 A

  However, in the prior art, the video is stored in the HDD at the time of adjustment, and the video before and after the parameter change is displayed simultaneously in two screens. There was a problem that the image quality was reduced and it was difficult to understand.

  The present invention visualizes the effect of the adjustment parameter in a characteristic part by cutting out a part of an arbitrary image, and enables the user to easily perform image quality adjustment corresponding to any scene. Objective.

  In the adjustment parameter setting method of the present invention, a step of cutting out an arbitrary portion of an arbitrary image and storing it in a memory, a step of displaying images before and after parameter change for a plurality of cut out portions, a parameter, And a step of applying and displaying the change in real time.

  The adjustment parameter setting method of the present invention includes a step of displaying a menu on the screen corresponding to the operation of the menu key, and a step of shifting from the menu display to the image clipping operation corresponding to the image clipping selection operation. A step of cutting out images of a plurality of cutout regions in accordance with selection of a plurality of cutout regions on the screen and storing them in a memory; and a step of displaying a plurality of cutout images on the screen by OSD display after the cutout operation is completed. And a step of performing image quality adjustment on a plurality of clipped images by a menu.

  The adjustment parameter setting method of the present invention is further characterized in that a plurality of parameters for adjusting image quality can be adjusted at the same time when the parameter is changed.

  In the adjustment parameter setting method of the present invention, the parameter is changed by displaying at least one adjustment parameter as a bar in the vicinity of displaying the comparison image before and after the change on the adjustment screen, and adjusting the bar. Thus, a plurality of parameters can be adjusted at the same time while viewing a nearby adjustment image.

  The adjustment parameter setting method of the present invention is further characterized in that the parameter is changed by displaying a cut-out screen for cutting out an image and an adjustment screen for adjusting the parameters of the cut-out image on the same screen.

  In addition, a display device capable of setting adjustment parameters according to the present invention includes a signal processing unit that processes a video signal, an OSD unit, an operation unit, a memory unit, a display unit, and a control unit that controls these, and the operation unit By the image cutout operation by the control unit, the control unit cuts out an arbitrary part of an arbitrary image from the signal processing unit and stores image data of a plurality of areas in the memory unit, and the adjustment operation by the operation unit The display unit includes image data of a plurality of areas read from the memory unit, OSD display for parameter adjustment by the OSD unit, and a plurality of adjusted image data in which image quality is adjusted by adjusting the parameters. It is characterized by displaying.

  According to the present invention, since the clipped portion is displayed without being reduced, the effect of changing the parameters is easy to understand. In addition, since any part of an arbitrary image can be taken out, adjustments can be made simultaneously for different scenes such as dark images and bright images, and adjustments such as black level and brightness can be made while simultaneously viewing white and black images. Is possible.

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

  FIG. 1 is a block diagram of a receiver capable of setting adjustment parameters according to the first embodiment of the present invention. In FIG. 1, 1 is an antenna, 2 is a tuner, 3 is an interface, 4 is an AV selector, 5 is a Y / C separator, 6 is a chroma decoder, 7 is an RGB processor, 8 is a combiner, and 9 is a liquid crystal display (LCD). ) 10 is an external input device, 11 is an audio amplifier, 12 is a speaker, 13 is an OSD (On Screen Display) / character generator, 14 is a light receiving unit, 15 is a microcomputer, 16 is a memory, and 17 is a remote controller.

  The broadcast signal received by the antenna 1 is selected by the tuner 2 and separated into the video signal V and the audio signal S by the interface 4. The video signal V and the audio signal S separated by the interface 4 and the signal from the external input device 10 are input to the AV selector 4 and sorted into the video signal V and the audio signal S.

  The video signal V is Y / C separated by a Y / C separator 5 and separated into a luminance signal Y and a color signal C. The luminance signal Y and the color signal C are input to a chroma decoder, and a luminance signal (Y: luminance signal) and a chrominance signal (UV: color signal) are generated. These signals are processed by the RGB processor 7 and displayed on a liquid crystal display (LCD) 9. The audio signal S selected by the AV selector 4 is amplified by the audio amplifier 11 and output to the speaker 12.

  The receiver capable of setting adjustment parameters according to the first embodiment of the present invention uses an OSD (On Screen Display) / character generator 13, a light receiving unit 14, a microcomputer 15, a memory 16, and a remote controller 17 to set adjustment parameters. The control signal transmitted by operating the menu key, cursor key, determination key, etc. of the remote controller 17 is received by the light receiving unit 14 and controlled by the microcomputer 15.

  When the menu key is operated to proceed to the image cropping menu, and the cutout area on the screen is selected by the cursor key and the enter key, the microcomputer 15 cuts out the image information of the selected cutout area on the screen from the RGB processor 7, Information on the cut-out image is stored in the memory 16. The above operation is repeated to store information on a plurality of cutout images on the memory.

  When there is an instruction to end the cut-out operation, the microcomputer 15 takes out the information of the cut-out image from the memory 16 and displays the OSD display and characters on the liquid crystal display (LCD) 9 via the OSD (On Screen Display) / character generator 13. Along with the display, information on a plurality of clipped images is displayed.

  When the menu key is operated to proceed to the image cropping menu, a plurality of parameter changes such as brightness or black level are made for the plurality of clipped images, and the clipped image before the parameter change and the clipped image after the parameter change are parallel. The image quality adjustment operation can be easily performed by the user.

  FIG. 2 is a flowchart of the procedure of the adjustment parameter setting method according to the second embodiment of the present invention. When the procedure is started in step S1 in FIG. 2, a menu is displayed by pressing a menu key in step S2. If it is determined in step S3 that an image is selected from the menu, the process proceeds to step S4. If it is not selected from the menu, step S3 is repeated.

  In step S4, a portion to be cut out is selected and stored in the memory. In step S5, if there is an instruction to end the cutout operation, the process proceeds to step S6, and in step S6, the cutout image is displayed on the screen. In step S5, if there is no instruction to end the cut-out operation, the process returns to step S4.

  In step S7, image quality adjustment is executed from the menu. In step S8, if the clipped image display ends, the process proceeds to step S9. If the clipped image display does not end, the process returns to step S7 and image quality adjustment is executed from the menu. In step S9, the screen returns to the normal screen, and in step S10, the procedure ends.

  FIG. 3 is an explanatory diagram of a cut-out screen and an adjustment screen when setting adjustment parameters according to the third embodiment of the present invention. In FIG. 3, reference numeral 20 denotes a cutout screen, 21 denotes a cutout area 1, 22 denotes a cutout area 2, and 23 denotes a cutout area 3. Also, 30 is an adjustment screen, 31 is a brightness OSD display, 32 is a black level OSD display, 211 is a cut-out area before adjustment 1, 212 is a cut-out area 2 after adjustment, 221 is a cut-out area 2 before adjustment, Reference numeral 222 denotes a cutout area 2 after adjustment, 231 denotes a cutout area 3 before adjustment, and 232 denotes a cutout area 3 after adjustment.

  In the cutout screen 20 of FIG. 3, for example, 21 cutout areas 1 showing the face of a person, 22 cutout areas 2 with many white parts, or 23 cutout areas 3 with many black parts are selected, and the cutout operation is performed. When executed, the image data of the cutout area 2 of the cutout area 1, the cutout area 2 of the cutout area 22, and the cutout area 3 of the cutout area 23 are cut out and stored in the memory 16.

  Further, on the adjustment screen 30 in FIG. 3, the pre-adjustment cut-out area 1 and the post-adjustment cut-out area 1 that are 211 are displayed side by side, and the post-adjustment cut-out areas 2 and 222 that are the pre-adjustment 221. The cutout area 2 is displayed side by side, and the cutout area 3 before adjustment which is 231 and the cutout area 3 after adjustment which is 232 are displayed side by side.

  When a plurality of parameters such as brightness or black label are adjusted while viewing the OSD display 31 of brightness and the OSD display of black level, the bar portion of the OSD display changes and the image quality of the image of the clipped area after adjustment is Adjusted with parameter changes. For example, if a region with a lot of white parts or a region with a lot of black parts is selected, the white level or black level of the image can be adjusted more accurately. The plurality of parameters to be adjusted are not limited to brightness and black level parameters, and various image quality adjustments such as image contrast, sharpness, and hue can be performed.

  FIG. 4 is an explanatory diagram of a cut-out screen and an adjustment screen when setting adjustment parameters according to the fourth embodiment of the present invention. In FIG. 4, a cutout screen 20, a cutout area 21, a cutout area 2 22, and a cutout area 3 23 are shown. Also, the adjustment screen 30, the OSD display 31 for brightness, the OSD display 32 for black level, the clipping area 1 211 before adjustment, the clipping area 1 212 after adjustment, the clipping area 2 221 before adjustment, and the adjustment area after adjustment The cutout area 2 222, the pre-adjustment cutout area 3 231, and the post-adjustment cutout area 3 232 are the same as in the third embodiment of FIG. 3.

  In the fourth embodiment, in addition to the images before and after adjustment, an image 213 in the intermediate cutout area 1, an image 223 image in the intermediate cutout area 2, an image 233 in the intermediate cutout area 3 can be displayed. In order to display an intermediate image, an intermediate image can be automatically generated and displayed using an intermediate parameter between the parameter before adjustment and the parameter after adjustment.

  FIG. 5 is an explanatory diagram of a cut-out screen and an adjustment screen when setting adjustment parameters according to the fifth embodiment of the present invention. In the third and fourth embodiments, the cutout screen at the time of setting the adjustment parameter and the adjustment screen are displayed on one display screen, whereas in the fifth embodiment, the cutout screen at the time of setting the adjustment parameter It is characterized in that the adjustment screen is divided and displayed on one large display screen. With the recent spread of large-screen televisions and the development of high-definition panels, even when the screen is divided and displayed, it is possible to adjust the image quality in detail on a high-definition screen with a certain size or more. In FIG. 5, the cut-out screen and the adjustment screen at the time of setting the adjustment parameter are displayed separately on the left and right, but it is possible to display them on the same screen by arranging them vertically or diagonally. .

FIG. 1 is a block diagram of a receiver capable of setting adjustment parameters according to the first embodiment of the present invention. FIG. 2 is a flowchart of the adjustment parameter setting method according to the second embodiment of the present invention. FIG. 3 is an explanatory diagram of a cut-out screen and an adjustment screen when setting adjustment parameters according to the third embodiment of the present invention. FIG. 4 is an explanatory diagram of a cut-out screen and an adjustment screen when setting adjustment parameters according to the fourth embodiment of the present invention. FIG. 5 is an explanatory diagram of a cut-out screen and an adjustment screen when setting adjustment parameters according to the fifth embodiment of the present invention.

Explanation of symbols

1 Antenna 2 Tuner 3 Interface 4 AV Selector 5 Y / C Separator 6 Chroma Decoder 7 RGB Processor 8 Synthesizer 9 Liquid Crystal Display (LCD)
DESCRIPTION OF SYMBOLS 10 External input device 11 Audio | voice amplifier 12 Speaker 13 OSD and character generator 14 Light-receiving part 15 Microcomputer 16 Memory 17 Remote control 20 Cutout screen 21 Cutout area 1
22 Cutout area 2
23 Cutout area 3
30 Adjustment screen 31 OSD display of brightness 32 OSD display of black level 211 Cutout area 1 before adjustment
212 Cutout area 1 after adjustment
213 Intermediate cutout area 1
221 Cutout area 2 before adjustment
222 Cutout area 2 after adjustment
223 Intermediate cutout area 2
231 Cutout area 3 before adjustment
232 Cutout area 3 after adjustment
233 Intermediate cutout area 3

Claims (6)

Cutting out any part of any image and storing it in memory;
Displaying two types of images before and after parameter change for a plurality of clipped portions;
And a step for applying and displaying parameter changes in real time. Displaying a menu on the screen in response to the operation of the menu key;
A step of shifting from a menu display to an image cutout operation corresponding to an image cutout selection operation;
In response to selection of a plurality of cutout areas on the screen, cutting out images of the plurality of cutout areas and storing them in a memory;
A step of displaying a plurality of cutout images on the screen by OSD display after the cutout operation ends;
An adjustment parameter setting method comprising: performing image quality adjustment on a plurality of clipped images using a menu. In the adjustment parameter setting method according to claim 1 or 2,
The parameter change method is characterized in that a plurality of parameters for adjusting image quality can be adjusted simultaneously. In the adjustment parameter setting method according to claim 1 or 2,
In the parameter change, at least one adjustment parameter is displayed as a bar in the vicinity where the comparison image before and after the change is displayed on the adjustment screen, and by adjusting the bar, a plurality of adjustment parameters can be seen while viewing the adjustment image nearby. An adjustment parameter setting method characterized in that the parameters can be adjusted simultaneously. In the adjustment parameter setting method according to claim 1 or 2,
The parameter is changed by displaying a cutout screen for cutting out an image and an adjustment screen for adjusting parameters of the cutout image on the same screen. A signal processing unit for processing a video signal, an OSD unit, an operation unit, a memory unit, a display unit, and a control unit for controlling them;
By the image cutout operation by the operation unit, the control unit cuts out an arbitrary part of an arbitrary image from the signal processing unit and stores image data of a plurality of areas in the memory unit,
The image data of a plurality of areas read from the memory unit by the adjustment operation by the operation unit, the OSD display for parameter adjustment by the OSD unit, and the plurality of adjusted images whose image quality has been adjusted by the parameter adjustment A display device capable of setting adjustment parameters, wherein the image data is displayed on the display unit.

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