Introduction - If you have any usage issues, please Google them yourself
A color image gray a two spatial enhancement technology 2 2.1 .1 Mapping grayscale image directly negated (negative) 2 2.1.2 calls imadjust 2 2.1.2 2.1.3 Dynamic Range Compression 3 4 2.1 Segmentation of gray .4 bitmap slicing 5 2.2 6 2.3 airspace histogram transform smoothing filter 7 7 2.3.2 2.3.1 9 three basic image sharpening filter 11 four frequency domain transform image enhancement 12 4.1 12 4.1.1 ideal low-pass filter low-pass Filter 12 4.1.2 Butterworth low-pass filter high-pass filter 14 13 4.2 4.2.1 4.2.2 ideal high-pass filter 14 Butterworth high-pass filter 16 4.3 17 five homomorphic filtering of image segmentation based on edge segmentation 20 5.1 20 5.2 edge connector 20 5.3 Segmentation Based on Mathematical Morphology six regions 22 25 6.1 25 6.2 expansion and corrosion opening and closing 25 seven color chart color model conversion processing 27 7.1 27 7.2 28 7.3 Pseudo-color enhancement true color processing 30