opencv document recognition + UI interface recognition system

Table of contents

1. Implementation and complete UI video effect display

Main interface:

Recognition result interface:

View the image processing process:

View history interface:

2. Principle introduction:

Transform the image size->Greyscale->Gaussian filter->Edge detection

 Contour extraction

Filter the outlines in the third step and select the larger ones

Draws a contour approximation, returning a contour with four points in it

Full demo video:

Full code link

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1. Implementation and complete UI video effect display

Main interface:

Recognition result interface:

View the image processing process:

View history interface:

2. Principle introduction:

Transform the image size->Greyscale->Gaussian filter->Edge detection

Function: Process images to make them easier to identify

 Contour extraction

Filter the outlines in the third step and select the larger ones

The one with the larger outline is the part of the document we need.

Draws a contour approximation, returning a contour with four points in it

Get the outline and identify the text within the outline

 

 

Full demo video:

Unable to paste video........

Full code link

The video and code have been uploaded to Baidu Netdisk and placed as a top article on the homepage.