Bitmap has only 2 colors which makes it the smallest file, 2.8k. The output is 300 and 50% threshold which 2 colors will always appear as black and white.
The Gray Scaled is the second smallest file by 22.9k. It's a little higher because grey has 256 shades same as RGB.
Indexed color is limited to 4-12 and its 9. The file size is 59.4k a lot higher because it includes a lot more colors in Indexed.
It's the highest file size by 2.22m because its the normal mode of the photo. It has 16.7 million colors to create the image in this mode.
PS: Color Modes: Worksheet/Quiz
1. Can you change FILE FORMAT just by changing it's name? Discuss
No because it will confuse the computer and errors can occur.
2. How many colors are in the following COLOR MODES?
RGB: 16.7
Indexed Color: 0-256
Greyscale: 256
Bitmap:2
3. What happens to the (uncompressed) FILE SIZE as you change the COLOR MODES. Discuss
It lowers the file size, because it has less colors and size.
4. What happens to the visual quality of images as you REDUCE the number of colors by changing the color mode?
It changes and loses its quality and data.
5. What is a good reason to convert PSD files to JPG?
To use it for delivery.
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