Question

gimp is an open source photo editing application that gives you a variety of ways to manipulate photos. categorize each operation as either \lossless\ or \lossy\: operation lossless or lossy? crop: trims the sides of the image. grayscale: converts the photo to black & white (256 shades of grey). invert: inverts all the pixel colors and brightness values (i.e. black pixels become white pixels).

Explanation:

• Crop: Trimming the sides of an image doesn't lose any pixel - level information about the remaining part of the image, so it's lossless.
• Grayscale: Converting to grayscale from a color image discards color - specific information (hue and saturation in RGB), so it's lossy.
• Invert: Inverting pixel colors and brightness values is a reversible operation and doesn't lose any information, so it's lossless.

Answer:

Crop: Lossless
Grayscale: Lossy
Invert: Lossless