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Method for acquiring sub-pixel brightness of a special-shaped display screen

An acquisition method and image acquisition technology, which are applied in image acquisition, image communication, image data processing, etc., can solve the problem of unable to guarantee the acquisition of qualified special-shaped screen images, and achieve the effect of good reliability and guaranteed acquisition quality.

Pending Publication Date: 2019-04-19
苏州佳智彩光电科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The present invention provides a sub-pixel luminance acquisition method of a special-shaped display screen, the purpose of which is to solve the problem that the prior art cannot guarantee the collection of qualified special-shaped screen images

Method used

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  • Method for acquiring sub-pixel brightness of a special-shaped display screen
  • Method for acquiring sub-pixel brightness of a special-shaped display screen
  • Method for acquiring sub-pixel brightness of a special-shaped display screen

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0035] Embodiment: A test system that supports multiple working modes of OLED screens

[0036] See attached figure 1 , build an image acquisition platform in advance, the image acquisition platform is mainly composed of host computer, signal generator, OLED screen and camera. Wherein, the camera adopts a CCD high-resolution camera.

[0037] The host computer is connected to the signal generator and the camera respectively; the output terminal of the signal generator is connected to the input terminal of the OLED screen to realize the free control of the host computer to the display of the OLED screen; a gray threshold value is stored in advance in the host computer.

[0038] See attached figure 2 , and follow these steps:

[0039] S1: Using a camera to automatically collect images displayed on the OLED screen to obtain image data, wherein the image data includes several pixel clusters.

[0040] Among them, see attached image 3 , the automatic collection includes the fol...

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Abstract

The invention discloses a method for acquiring sub-pixel brightness of a special-shaped display screen, which comprises the following steps of: automatically acquiring an image displayed on an OLED screen by using a camera to obtain image data, Extracting all gray values on the image data, comparing all the gray values with the gray threshold value, and performing zero setting processing on the gray value lower than the gray threshold value; Searching a two-dimensional coordinate of a maximum gray value point in each pixel group in the image data; Calculating the difference value of the two-dimensional coordinates of the maximum gray value point in the adjacent pixel groups, and finding out a group of difference values with the highest occurrence frequency from all the difference values; Calculating the minimum bounding rectangle of the maximum gray value point in each pixel group; Calculating a direction vector of a two-dimensional coordinate in the corresponding pixel group through the minimum enclosing rectangle; Searching a first column of pixel points capable of completely finding out the maximum gray value point in the image data along a direction; Searching all pixel pointsof the image data along the directions of the two sides of the first column by taking the first column as a reference.

Description

technical field [0001] The invention belongs to the field of optoelectronics, and in particular relates to a display screen acquisition method, in particular to a special-shaped display screen sub-pixel luminance acquisition method. Background technique [0002] Full screens can be divided into special-shaped screens and non-special-shaped screens. Among them, special-shaped screens are cut off on the basis of non-special-shaped screens to place parts such as cameras and earpieces. At present, special-shaped screens have become an important part of OLED screens. new trend. [0003] However, due to the particularity of the special-shaped screen, it is not only difficult to process and high in cost, but also brings great challenges to the positioning and detection of the Mura device of the panel screen. [0004] And because the current AMOLED module manufacturing process is still not very perfect, quite a part of the OLED screens produced are not perfect. In order to increase...

Claims

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Application Information

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IPC IPC(8): G06T1/00H04N5/232
CPCG06T1/0007H04N23/80
Inventor 不公告发明人
Owner 苏州佳智彩光电科技有限公司
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