Small Scale Histogram Representation

This week, we did a small scale histogram analysis of our fingerprint samples in MATLAB. In other word, we chose an image from our fingerprint dataset and plotted its histogram which is simply a tonal distribution of the image.

Fig1. Histogram Distribution

The image above is a graphical representation of tonal variations versus the number of pixels in that particular tone. Furthermore, using histogram equalization we looked at the intensity distribution of the original versus contrast enhanced image. The result corresponding to histogram equalization is displayed in Fig2,3, and 4.


Fig2. Original Image vs. Intensity Image



Fig3. Histogram Representation of the Original Image


Fig4. Histogram Representation of the Intensity Image