CN107124665B - TV image quality processing demonstration method - Google Patents
TV image quality processing demonstration method Download PDFInfo
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- CN107124665B CN107124665B CN201710392859.5A CN201710392859A CN107124665B CN 107124665 B CN107124665 B CN 107124665B CN 201710392859 A CN201710392859 A CN 201710392859A CN 107124665 B CN107124665 B CN 107124665B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/485—End-user interface for client configuration
- H04N21/4854—End-user interface for client configuration for modifying image parameters, e.g. image brightness, contrast
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Abstract
The invention relates to the digital television technology. The invention provides a television picture quality processing demonstration method, aiming at solving the problems that the demonstration is not comprehensive and a plurality of demonstration scenes need to be added in the existing television picture quality demonstration processing, and the technical scheme can be summarized as follows: and starting a demonstration mode, demonstrating the processing process and effect of the system on various relevant parameters such as definition, noise reduction, dynamic field depth, color space and the like in the PQ processing respectively by the system, and finally prompting the completion of the demonstration. The invention has the advantages that the invention can perform comprehensive demonstration of television image quality characteristic processing to users at one time, and is suitable for digital televisions.
Description
Technical Field
The invention relates to a digital television technology, in particular to a digital television image quality processing technology.
Background
At present, the phenomenon of television product function homogenization is prominent, manufacturers pay more attention to the characteristic function of television sound and picture quality, and respective new technical characteristics are continuously popularized along with the development of screen display and signal processing technology, wherein the characteristic of picture quality processing becomes the propaganda key point.
Since there are large subjective factors in the evaluation of image quality, manufacturers develop a function of demonstrating the image quality of a product in order to show the characteristics of the image quality in the product. At present, image quality demonstration processing has two modes, one mode is to perform demonstration of different image quality processing effects through a split screen demonstration mode, and the other mode is to perform demonstration through adding an image quality processing switch. Both modes can only demonstrate partial image quality processing effects, and multiple demonstration scenes are needed for demonstrating the image quality function of the system.
In terms of signal processing procedures, after a television signal is decoded, operations such as cropping, color space conversion, down-sampling, scaling, data bit width reduction and the like are firstly performed on an input video in a PQ (picture quality) processing module, and then NR (noise reduction), DI, CCC L/CCS, DBDR, navigation, Crop, image quality enhancement (definition enhancement, dynamic depth of field processing and the like) and image color adjustment (color space processing) are performed, and then the processed video is output to a display screen through a plurality of video output ports through a normal SCA L ER processing procedure.
Disclosure of Invention
The invention aims to solve the problems that in the current television picture quality demonstration processing, the demonstration is not comprehensive and a plurality of demonstration scenes need to be added, and provides a television picture quality processing demonstration method.
The invention solves the technical problem, adopts the technical scheme that the television image quality processing demonstration method is characterized by comprising the following steps of:
step 1, starting a demonstration mode and entering a demonstration mode state;
step 2, the system sets the brightness, contrast and chroma parameters to be in a standard state and enters a normal picture;
step 3, gradually closing definition, noise reduction, dynamic field depth and color space processing under a normal picture to enable a screen to display a black-and-white original image;
step 4, calling a special GAMMA curve to enable a screen to display a black-white reverse color picture;
step 5, opening the definition and noise reduction processing, and closing a low-pass filter channel in the definition and noise reduction processing at the same time, so that the image after the image contour processing is dynamically displayed on the image;
step 6, setting definition and noise reduction processing parameters, and gradually demonstrating the gradual change process of the image when a larger outline is processed to a smaller outline in the picture;
step 7, restoring the definition and the noise reduction processing parameters to the optimal values adjusted during the PQ processing;
step 8, setting the GAMMA curve to be in a normal state, and displaying black and white images subjected to definition and noise reduction on a screen;
step 9, starting dynamic depth of field processing, and gradually demonstrating the adjusting process of the dynamic depth of field from the brightest picture to the darkest picture;
step 10, restoring the dynamic depth of field processing parameter to the optimal value adjusted during PQ processing;
step 11, starting color space processing, independently starting skin color processing, gradually adjusting each color parameter in the skin color processing, and demonstrating the processing effect;
step 12, restoring each color parameter in the skin color processing to the optimal value adjusted in the PQ processing;
step 13, respectively starting red, blue, green, cyan, purple and yellow color treatments, gradually adjusting various color treatment parameters, and demonstrating treatment effects;
and step 14, prompting the completion of the demonstration.
Specifically, in step 11, the color parameters include color tone and color brightness.
Further, in step 14, after the prompt demonstration is completed, timing is started, if no other operation is performed after the preset time is reached, the step 2 is returned, otherwise, the normal picture is restored, and then the other operation is processed.
Specifically, the preset time is 1-2 seconds.
Still further, the method also comprises the following steps:
and step 15, in the demonstration mode state, if a demonstration stopping signal is received or other operations exist, stopping the current demonstration, and recovering the normal picture or processing other operations after recovering the normal picture.
The invention has the advantages that through the television image quality processing demonstration method, the comprehensive television image quality characteristic processing demonstration can be performed to the user at one time, a plurality of demonstration scenes are added, the user does not need to independently select what needs to be demonstrated, and omission is not easy to occur during demonstration.
Detailed Description
The technical solution of the present invention will be described in detail with reference to the following examples.
The television picture quality processing demonstration method comprises the following steps: starting a demonstration mode, entering a demonstration mode state, setting brightness, contrast and chromaticity parameters to be in a standard state by a system, entering a normal picture, gradually closing definition, noise reduction, dynamic field depth and color space processing under the normal picture to enable a screen to display a black-white original image, calling a special GAMMA curve to enable the screen to display a black-white reverse image, then starting definition and noise reduction processing, simultaneously closing a low-pass filter channel in the definition and noise reduction processing to enable the picture to dynamically display an image after picture contour processing, then setting definition and noise reduction processing parameters to gradually demonstrate the gradual change process of the image when a larger contour is processed to a smaller contour in the picture, then restoring the definition and noise reduction processing parameters to an optimal value adjusted during PQ processing, then setting the GAMMA curve to be in a normal state, and displaying the black-white image after the definition and noise reduction processing on the screen, then starting dynamic field depth processing, gradually demonstrating the adjusting process of the dynamic field depth from the brightest picture to the darkest picture, restoring the dynamic field depth processing parameter to the optimal value adjusted during PQ processing, then starting color space processing, independently starting skin color processing, gradually adjusting each color parameter in skin color processing, demonstrating processing effect, restoring each color parameter in skin color processing to the optimal value adjusted during PQ processing, then respectively starting red, blue, green, cyan, purple and yellow color processing, gradually adjusting each color processing parameter, demonstrating processing effect, and finally prompting the completion of the demonstration.
Examples
The television picture quality processing demonstration method provided by the embodiment of the invention comprises the following specific steps of:
step 1, starting a demonstration mode and entering a demonstration mode state.
And 2, setting parameters such as brightness, contrast, chromaticity and the like to be in a standard state by the system, and entering a normal picture.
And step 3, gradually closing the definition, noise reduction, dynamic field depth and color space processing under a normal picture, and enabling the screen to display a black-and-white original image.
And 4, calling a special GAMMA curve to enable the screen to display a black-white reverse color picture.
And 5, opening the definition and noise reduction processing, and closing a low-pass filter channel in the definition and noise reduction processing at the same time, so that the image after the image contour processing is dynamically displayed on the image.
And 6, setting definition and noise reduction processing parameters, and gradually demonstrating the gradual change process of the image when a larger outline is processed to a smaller outline in the picture.
And 7, restoring the definition and the noise reduction processing parameters to the optimal values regulated during the PQ processing.
And 8, setting the GAMMA curve to be in a normal state, and displaying the black and white image subjected to definition and noise reduction on a screen.
And 9, starting dynamic depth of field processing, and gradually demonstrating the adjusting process of the dynamic depth of field from the brightest picture to the darkest picture.
And step 10, restoring the dynamic depth of field processing parameter to the optimal value adjusted during PQ processing.
And 11, starting color space processing, independently starting skin color processing, gradually adjusting each color parameter in the skin color processing, and demonstrating the processing effect.
In this step, each color parameter may include a color tone, a color brightness, and the like.
And step 12, restoring each color parameter in the skin color processing to the optimal value adjusted in the PQ processing.
And step 13, respectively starting red, blue, green, cyan, purple and yellow color treatments, gradually adjusting various color treatment parameters, and demonstrating treatment effects.
And step 14, prompting the completion of the demonstration.
In the step, after the presentation is finished, timing is started, if the preset time is reached, other operations are not performed, the step 2 is returned, otherwise, the normal picture is recovered, and the other operations are processed. Here, the preset time may be 1-2 seconds.
In this example, the method may further include the following steps:
and step 15, in the demonstration mode state, if a demonstration stopping signal is received or other operations exist, stopping the current demonstration, and recovering the normal picture or processing other operations after recovering the normal picture.
The above-mentioned flow includes the demonstration process of every relevant parameter such as definition, noise reduction, dynamic depth of field, color space, etc. in the PQ processing, and in the actual processing, when some special processing algorithms need to be demonstrated, the corresponding demonstration can be added into the flow according to the characteristics of the algorithms and the different of the belonged modules. The definition and noise reduction processing demonstration in the process adopts a reverse color picture highlighting demonstration effect; the dynamic depth of field processing demonstration adopts a black and white picture highlighting demonstration effect; the color space processing demonstration adopts a method of gradually opening skin color, red, blue, green, cyan, purple and yellow processing modules on a black-and-white image and independently demonstrating the color processing to highlight the demonstration effect.
Claims (5)
1. The television picture quality processing demonstration method is characterized by comprising the following steps:
step 1, starting a demonstration mode and entering a demonstration mode state;
step 2, the system sets the brightness, contrast and chroma parameters to be in a standard state and enters a normal picture;
step 3, gradually closing definition, noise reduction, dynamic field depth and color space processing under a normal picture to enable a screen to display a black-and-white original image;
step 4, calling a special GAMMA curve to enable a screen to display a black-white reverse color picture;
step 5, opening the definition and noise reduction processing, and closing a low-pass filter channel in the definition and noise reduction processing at the same time, so that the image after the image contour processing is dynamically displayed on the image;
step 6, setting definition and noise reduction processing parameters, and gradually demonstrating the gradual change process of the image when a larger outline is processed to a smaller outline in the picture;
step 7, restoring the definition and the noise reduction processing parameters to the optimal values adjusted during the PQ processing;
step 8, setting the GAMMA curve to be in a normal state, and displaying black and white images subjected to definition and noise reduction on a screen;
step 9, starting dynamic depth of field processing, and gradually demonstrating the adjusting process of the dynamic depth of field from the brightest picture to the darkest picture;
step 10, restoring the dynamic depth of field processing parameter to the optimal value adjusted during PQ processing;
step 11, starting color space processing, independently starting skin color processing, gradually adjusting each color parameter in the skin color processing, and demonstrating the processing effect;
step 12, restoring each color parameter in the skin color processing to the optimal value adjusted in the PQ processing;
step 13, respectively starting red, blue, green, cyan, purple and yellow color treatments, gradually adjusting various color treatment parameters, and demonstrating treatment effects;
and step 14, prompting the completion of the demonstration.
2. The method according to claim 1, wherein in step 11, the color parameters include hue and color brightness.
3. The method as claimed in claim 1, wherein in step 14, after the presentation is completed, timing is started, if no other operation is performed for a predetermined time, the step 2 is returned, otherwise, the normal screen is restored and the other operation is processed.
4. The television picture quality processing presentation method of claim 3, wherein the predetermined time is 1-2 seconds.
5. The television picture quality processing demonstration method according to claim 1, 2, 3 or 4, further comprising the steps of:
and step 15, in the demonstration mode state, if a demonstration stopping signal is received or other operations exist, stopping the current demonstration, and recovering the normal picture or processing other operations after recovering the normal picture.
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2005157027A (en) * | 2003-11-27 | 2005-06-16 | Canon Inc | Method for displaying image |
| CN1744722A (en) * | 2004-09-02 | 2006-03-08 | 上海乐金广电电子有限公司 | Digital pixel regulating device and method thereof |
| CN1812518A (en) * | 2006-02-27 | 2006-08-02 | 四川长虹电器股份有限公司 | Televison image effect regulation demonstrating method and television utilizing the same method |
| CN101316340A (en) * | 2007-06-01 | 2008-12-03 | 海尔集团公司 | Demonstration method of high resolution TV |
| CN102843498A (en) * | 2012-08-03 | 2012-12-26 | 四川长虹电器股份有限公司 | Television image quality parameter separating method |
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