what are the file types for pictures and/or images for the internet ?

Question

also of these which one is best for sharp angles on flat color or cartoon or scanned painting

Answer 1

GIF: Used for cartoon like images.

PNG, An improvement over GIF; see: http://en.wikipedia.org/wiki/PNG

JPG: Used for pictures.

Answer 2

JPEG and Gif are going to be your two main image file formats that you will find on the web. Gif is good basically for logo's or line art, where complex colors are not necessary, and size is of utmost concern. The reason for the .gif format being so small is because it uses an 8bit palette, in other words you have a limited color palette of 256 colors. So for Photo's or paintings stay away from Gif, and don't even think about saving in .bmp either as this is an uncompressed file format and yields rather large images.
Your solution is JPEG. The JPEG (Joint Photographic Experts Group) image files are a lossy format. The DOS filename extension is JPG, although other operating systems may use JPEG. Nearly all digital cameras have the option to save images in JPEG format. The JPEG format supports 8-bit per color - red, green, and blue, for 24-bit total - and produces relatively small file sizes. Fortunately, the compression in most cases does not detract noticeably from the image. But JPEG files do suffer generational degradation when repeatedly edited and saved. Photographic images are best stored in a lossless non-JPEG format if they will be re-edited in future, or if the presence of small "artifacts" (blemishes), due to the nature of the JPEG compression algorithm, is unacceptable. JPEG is also used as the image compression algorithm in many Adobe PDF files.
Lastly with Jpeg you can choose how much you want to compress the image so as to make it smaller. The more compression you choose, the smaller the file, and the more information you are throwing away. Oh and be sure to save your file at 72dpi, the typical screen resolution of most monitors.

Answer 3

jpeg bitmap psd

Answer 4

jpeg, bitmap and gif.

Answer 5

everyone above is correct.