IMAGE_PROCESSING_APP

A desktop application written in java for processing grayscale images.

Features :

• Read / Write PPM and PGM file format
• Calculating image metrics such as : mean and standard deviation
• Drawing the grey level histogram , the cumulative histogram
• Histogram equalization
• Linear transformation
• Adding salt and paper noise
• Applying Filters : median filter ,mean filter , outline filter
• PPM images segmentation using thresholds
• Using Otsu segmentation algorithm with opencv

Objectives learnt :

• Learning the fundamental concepts of image processing
• Developping some of the PPM images functionalities ( read , write , calculating metrics , applying filters , performing linear transformation )
• Using javafx for the GUI
• Integrating opencv library to calculate otsu threshold , to erode and dilate images

Demo :

1- Applying median filter to a noisy image (salt and paper noise )

Noisy image

Filtered image

2- Applying high-pass filter (and outline filter)

Original image

Filtered image

3- Image after Histogram equalization

Original image

Adjusted image

4- Linear Transformation :

5- Segmentation using Otsu :

Original image

After segmentation

6-Erosion (Kernel size is 5*5 , kernel types : rectangle , cross , ellipse ) :

7-Dilatation (Kernel size is 5*5 , kernel types : rectangle , cross , ellipse ) :