halcon operator gray_tophat

Function: Use structural elements to transform the top hat of the image;

Top hat transformation definition: the difference between an image and its open operation result is called top hat transformation;

Corresponding to the top hat is the bottom hat transformation;

Definition of bottom hat transformation: the difference between the closed operation of an image and this image is called black hat transformation;

The main purpose of changing the top hat or bottom hat is to get an image with a uniform background.

 

Parameter translation (the order corresponds to the order of the above parameters):

Input image,

Input structure elements (you can use operators such as gen_disc_se to generate different structure elements),

Output transformed image

 

description:

1. The type of input image and input structure element must be the same;

2. The calculation relationship between the input image i and the input structure element s is as follows:

3. As can be seen from the above formula, the definition of top hat transformation: the difference between an image and its open operation result;

 

Guess you like

Origin blog.csdn.net/weixin_39829336/article/details/113031353