Grayscale, Add, Subtract
Linear convolution, Color Space Models
DFT, Circular Convolution, DCT
Local Color Correction
RGBLCC
HSILCC
HSVLCC
HSLLCC
Simplest Color Balance
Screened Poisson
AMF
DBMF
ADBMF
AHE
Fast AHE
Sobel, Laplacian
Canny
Sobel. Roberts, Prewitt
Modified Otsu
Multi level thresholding
JPEG compression
Improved Adaptive Huffman Compression Algorithm
Modified BTC for natural image compression