An automatic analysis method for color difference of 24 color cards

An automatic analysis and chromatic aberration technology, which is applied in the field of automatic chromatic aberration analysis of 24 color cards, can solve problems such as low processing efficiency, complex fine-tuning of 24 color cards, and a large amount of manual processing time, so as to achieve efficient and accurate processes, reduce workload, and reduce chromatic aberration Analyzing the Effects of Error

Active Publication Date: 2021-11-23
易诚高科(大连)科技有限公司
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Problems solved by technology

But the disadvantage is that the fine-tuning of the 24-color card is too complicated. When geometric distortion occurs, it takes a lot of manual processing time to locate the position of the card under the distortion, and the processing efficiency is extremely low.

Method used

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  • An automatic analysis method for color difference of 24 color cards

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Embodiment Construction

[0031] The specific embodiment of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0032] It should be noted that, in the following specific embodiments, when describing the embodiments of the present invention in detail, in order to clearly show the structure of the present invention for the convenience of description, the structures in the drawings are not drawn according to the general scale, and are drawn Partial magnification, deformation and simplification are included, therefore, it should be avoided to be interpreted as a limitation of the present invention.

[0033] For the current objective image quality evaluation system, the chart used to make a 24-color map contains 24 colors of natural objects, and the standard value of the color space of the chart is known. When conducting a 24-color chart test and evaluating the test results, it is necessary to automatically analyze the image color difference of th...

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Abstract

The invention discloses an automatic analysis method for color difference of 24 color cards, which utilizes the properties of the chart itself to construct an algorithm system for automatically analyzing the color difference of 24 color cards, and uses the correction transformation of the standard area to reduce the color difference analysis error caused by geometric distortion , thereby reducing the workload of manually adjusting the evaluation chart, and making the overall color difference evaluation process more efficient and accurate.

Description

technical field [0001] The present invention relates to an objective image quality evaluation method, more specifically, an automatic analysis method for color difference of 24 color cards. Background technique [0002] The 24-color map chart is the test object often used in objective image quality evaluation. For the current objective image quality evaluation system, the chart used to make a 24-color map contains 24 colors of natural objects, and the standard value of the color space of the chart is known. When conducting a 24-color chart test and evaluating the test results, it is necessary to automatically analyze the image color difference of the 24-color chart. [0003] The existing 24-color card color difference parameter extraction method first needs to automatically calibrate the 24-color card area to be evaluated for each frame during the entire video shooting process under the condition of markers, and then extracts the 24-color card area, and finally calculates t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/11G06T7/136G06T7/90
CPCG06T2207/30168G06T7/11G06T7/136G06T7/90
Inventor 廖志梁陶亮王道宁张亚东董波
Owner 易诚高科(大连)科技有限公司
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