This chapter taught us several important image enhancement techniques, specifically:
With the help of ample examples, we learned how to adjust the color, brightness, and contrast of an image.
We learned how to blend images together create composites using image mask and how to add transparency.
We applied blending, pasting, and other techniques learned to develop an interesting tool. We implemented features in this tool that enabled inserting a watermark, text, or date stamp to an image.
A number of image enhancement filters were discussed. Using code snippets we learned how to reduce high-level noise from image, enhance edges, add sharpening or blurring effects, emboss an image, and so on.
We learned miscellaneous other useful image enhancements such as creating negatives and adding border effects to the image.