Unlock instant, AI-driven research and patent intelligence for your innovation.

Frequency-domain analysis-based method of removing image moire

A technology of frequency domain analysis and moiré, applied in the information field, can solve the problem of uneven display on the display panel, and achieve the effect of convenient operation and good effect

Active Publication Date: 2018-08-10
深圳市商巨视觉技术有限公司
View PDF5 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In view of this, the purpose of the embodiments of the present invention is to provide a method for removing image moiré based on frequency domain analysis, so as to improve the problem of display unevenness in display panels that are easily affected by moiré in the prior art

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0040] The embodiments described below are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.

[0041] It should be noted that in the description of the present invention, the terms "first", "second" and so on are only used to distinguish descriptions, and should not be understood as indicating or implying relative importance.

[0042] The method for removing image moiré based on frequency domain analysis includes:

[0043] S1. Process the captured image to obtain a first image, where the first image is an image part of a picture displayed on the panel in the captured image;

[0044] S2, analyzing the brightness of the first image, the first image is represented by a first matrix, and the values ​​of the first elements correspond to the brightness values ​​of ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The embodiment of the invention provides a frequency-domain analysis-based method of removing image moire. The method includes: processing a shot image to acquire a first image, wherein the first image is an image portion of a picture displayed by a panel in the shot image; analyzing brightness of the first image, wherein the first image is represented through a first matrix, and values of elements of the first matrix respectively correspond to brightness values of pixels of the first image; transforming the first matrix into frequency-domain matrices through an FFT (Fast Fourier Transform) algorithm; analyzing the frequency-domain matrices, then decreasing excessively high frequency-domain values in the frequency-domain matrices, and carrying out inverse Fourier transform on the adjustedfrequency-domain matrices to obtain a second matrix; and adjusting the brightness of the first image according to the second matrix to obtain a second image of which the moire is removed. According tothe method, brightness distribution and periodic changes of the first matrix are found through frequency-domain analysis, and then high-frequency portions brought due to moire effect are reduced. Themethod has the advantages of convenient operations and a good effect of removing the moire.

Description

technical field [0001] The present invention relates to the field of information technology, in particular to a method for removing image moiré based on frequency domain analysis. Background technique [0002] In a display panel such as a liquid crystal panel or an organic EL panel, images and / or images are displayed through different switching methods of pixels (pixels) having R (red), G (green), and B (blue) sub-pixels, Among them, R (red), G (green), and B (blue) are generally used to form the three primary colors of light, and some products may add W (white) or Y (yellow) to obtain a wider color gamut or brightness performance. Generally speaking, in such a display panel, it is unavoidable to have deviations in machining accuracy during the manufacturing process, resulting in uneven display. [0003] Display unevenness can be broadly classified into luminance unevenness and color unevenness. Luminance unevenness causes a luminance gradient between adjacent pixels. Col...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G06T5/00
CPCG06T5/00
Inventor 侯小华赵斌
Owner 深圳市商巨视觉技术有限公司