Preprocessing of "OPENCV" images (grayscale, binary, character correction (rotation))

1, first load the original picture;

2, Cvcvtcolor (IMG, source, Cv_bgr2gray), convert to grayscale image;

3, Cvthreshold (source,source_gray,100,255,cv_thresh_binary), binary processing.

Since the original picture will have a certain angle, need to rotate, and the rotation can use the function provided by OPENCV, this article is written by itself, that is, by rotating 360, and record the rotation of an angle to maximize the projection in the x-axis direction.

, the processed picture effect is as follows:

The complete project has been uploaded to the CSDN, and the address of the project will be put up when it is passed.

Preprocessing of "OPENCV" images (grayscale, binary, character correction (rotation))