Inspect how a color image is stored and converted to grayscale.

Modify exposure and compare the histogram before and after equalization.

Select a three- or four-point model and drag the source points.

Compare Sobel directions and morphological post-processing.

Compare a single threshold with a local decision rule.

Replace every pixel with its nearest RGB cluster center. Click a selected color below the images to hide or restore that cluster.

Drop a search image onto the upper canvas, then drag a rectangle to extract the template.

The second view is a transformed copy of the uploaded image.

The image is radially warped and fitted to the canvas. The green rectangle is the largest crop containing only valid image pixels.