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Image processing method and device, storage medium and electronic equipment

An image processing and image technology, applied in the field of camera testing, can solve problems such as inability to analyze the overall SFR value

Inactive Publication Date: 2021-10-08
NANCHANG O FILM OPTICAL ELECTRONICS TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method of selecting ROI has strong limitations on the SFR test, and cannot conduct an overall analysis of the SFR value under any field of view.

Method used

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  • Image processing method and device, storage medium and electronic equipment
  • Image processing method and device, storage medium and electronic equipment
  • Image processing method and device, storage medium and electronic equipment

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Embodiment Construction

[0119] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0120] In the description of the present application, it should be understood that the terms "first", "second" and so on are used for descriptive purposes only, and should not be understood as indicating or implying relative importance. In the description of the present application, it should be noted that, unless otherwise specified and limited, "including" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system,...

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Abstract

The embodiment of the invention discloses an image processing method and device, a storage medium and electronic equipment, and the method comprises the steps: carrying out graying of a checkerboard image, carrying out expansion processing according to a preset expansion coefficient, obtaining an expanded image, carrying out binarization processing of the expanded image, obtaining a binarized image, determining a minimum enclosing rectangle of each first black block in the binarized image as a first rectangular contour; and finally determining a region of interest ROI of each second black block in the checkerboard image based on each first rectangular contour in a proportional amplification mode. According to the embodiment of the invention, the checkerboard image can be processed to obtain the first rectangular contour of each first black block, and all ROIs in the checkerboard image are determined in a scale amplification mode, so that the analysis of the resolution of a camera module in any field of view can be realized by calculating the SFR corresponding to all ROIs, and further, the quality of the camera module can be analyzed by integrally analyzing the distribution condition of the SFR in the image.

Description

technical field [0001] The present application relates to the technical field of camera testing, and in particular to an image processing method, device, storage medium and electronic equipment. Background technique [0002] The spatial frequency response (spatial frequency response, SFR) test is a common test method for the resolution of a camera. During the SFR test, the camera to be tested is shot at the SFR test card to obtain the SFR test image. Since there are multiple black blocks on the SFR test card, the SFR test image also includes multiple black blocks, and the result is a checkerboard grid image. The SFR test software obtains the resolution of the camera to be tested by calculating the edge resolution of the black block in the SFR test image. [0003] To perform SFR testing, it is necessary to select a region of interest (Region of Interest, ROI). The current SFR test software generally automatically calculates the ROI at a fixed position in the SFR test image...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T3/40G06T7/00
CPCG06T7/0002G06T3/40G06T2207/10004G06T2207/20104G06T2207/30168
Inventor 胡友华
Owner NANCHANG O FILM OPTICAL ELECTRONICS TECH CO LTD
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