Details of the Project-1

After changing the RGB image into a YUV image, we try to continue the simplification in order to get a binary image. We attempt to find the threshold value in 4 method.

1.    I used 4 methods to make the original image binary, shown as following:

① average intensity value, we calculate the average threshold value equals to 0.517. The binary image is as following:

The result is not good because there are many interferential parts around the edge of two patterns.

② Otsu method is to calculate the between-class variance of image to binarize an image. The binarized image is shown as following:

Otsu method is used widely to binarize an image.But for our project, it is not good enough because we want a binary image which contains two patterns but Otsu method can only show one.

③ KittlerMet method.

Bad results are ignored.