To read image, bit slicing, rotating, enlarging, filling, thresholding,finding inverse, thresholding, gamma transform, log transform, piecewise transform, average filter, laplace filter, sobel filter, minimum, maximum median filter , gaussian noise, poisson noise, speckle noise, salt&pepper noise, finding snr value, harmonic filter, contraharmonic filter, alpha trimmed filter, wiener filter, fft and ifft shift and masking.
