OpenCV python Stamp filter photoshop
问题 I am new to opencv. I have multiple images. One of sample image as shown below at top left corner. Basically I want to separate background and foreground so that edges are clear and I can detect contours properly. I have tried many filter and of course thresholds using various parameters. Finally when I was looking on photoshop filters gallery I noticed a filter called Stamp which is giving me desired result(top-right corner). It makes edges clear and I guess use some amount of blur to soft