Contrast enhancement techniques in HSV or LAB

I have a greyscale image which has pixel values ranging from 1.000 to 1.003. I would like to increase the contrast between the different pixels.

First, convert the RGB image into HSV format. H and S channels contain the color information while the V channel contains the brightness value ...

Contrast enhancement of color images is typically done by converting the image to a color space that has image luminosity as one of its components, such as the ...

Adjust the contrast of grayscale and color images using intensity value mapping, histogram equalization, and contrast-limited adaptive histogram equalization. Contrast Enhancement... · Imadjust · Imcontrast

Contrast Enhancement Techniques. Adjust the contrast of grayscale and color images using intensity value mapping, histogram equalization, and contrast-limited ...

The Adjust Contrast tool enables you to interactively adjust the contrast and brightness of a displayed grayscale image.

My first question is if it is in general better to apply the contract enhancement techniques like imadjust(), histeq() in HSV (on V) or LAB (on L).

B = localcontrast( A , edgeThreshold , amount ) enhances or flattens the local contrast of A by increasing or smoothing details while leaving strong edges ...

This tutorial video teaches on enhancing the quality of an gray scale image in Matlab.... You can also download the matlab code here at ...