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Image distortion evaluation method and device and computer equipment

An image distortion and evaluation technology, applied in the field of image analysis, can solve the problems of high computational complexity, inability to reflect the visual texture loss of enhanced images, and limited application scenarios

Pending Publication Date: 2021-02-12
BEIJING BYTEDANCE NETWORK TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] When evaluating image distortion, one method is to evaluate by analyzing pixel differences, but this evaluation method cannot reflect the visual texture loss of the enhanced image. Another method is to perform loss calculation through model training. Due to the high computational complexity, the application scenarios are limited

Method used

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  • Image distortion evaluation method and device and computer equipment
  • Image distortion evaluation method and device and computer equipment
  • Image distortion evaluation method and device and computer equipment

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Embodiment 1

[0080] see figure 1 As shown, it is a flow chart of the image distortion evaluation method provided by Embodiment 1 of the present disclosure, the method includes steps S101-S104, wherein:

[0081] S101: Acquire an original image and an enhanced image, where the enhanced image is generated by performing image enhancement processing on the original image.

[0082] In a specific implementation, an original image may be acquired, and image enhancement may be performed on the original image to obtain an enhanced image after image enhancement processing.

[0083] In a specific implementation, various image enhancement processing methods may be used to obtain different enhanced images.

[0084] S102: Perform block processing on the original image and the enhanced image respectively, to obtain a plurality of first blocks of the original image and a plurality of second blocks of the enhanced image.

[0085] In a specific implementation, the original image and the enhanced image can ...

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Abstract

The invention provides an image distortion evaluation method and device and computer equipment, and the method comprises the steps: obtaining an original image and an enhanced image, wherein the enhanced image is generated through the image enhancement of the original image; performing block processing on the original image and the enhanced image to obtain a plurality of first blocks of the original image and a plurality of second blocks of the enhanced image; obtaining a preset proportion window size conforming to human eye visual characteristics, and respectively counting first proportion information entropies corresponding to the plurality of first blocks of the original image and second proportion information entropies corresponding to the plurality of second blocks of the enhanced image according to the proportion window size; and determining the visual texture loss degree of the enhanced image according to the first proportion information entropy corresponding to each first blockand the second proportion information entropy corresponding to each second block. According to the embodiment of the invention, the evaluation of the visual texture loss of the enhanced image can berealized on the premise of reducing the calculation complexity.

Description

technical field [0001] The present disclosure relates to the field of image analysis, in particular, to a method, device and computer equipment for evaluating image distortion. Background technique [0002] Image enhancement is a general term for a series of technologies that enhance the useful information of images and improve the visual effects of images. After image enhancement, it is generally necessary to evaluate the distortion of the enhanced image relative to the original image. [0003] When evaluating image distortion, one method is to evaluate by analyzing pixel differences, but this evaluation method cannot reflect the visual texture loss of the enhanced image. Another method is to perform loss calculation through model training. Due to the high computational complexity, the application scenarios are limited. Contents of the invention [0004] Embodiments of the present disclosure at least provide an image distortion evaluation method, device and computer equ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T5/00G06T7/41
CPCG06T7/41G06T2207/30168G06T2207/20081G06T5/90G06T7/0002G06T2207/20021G06T2207/20016G06T5/00
Inventor 肖尧张杨
Owner BEIJING BYTEDANCE NETWORK TECH CO LTD
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