Image Mode and Image Types
Image Mode - change the colouring and file type of an image.
The two main image modes used in Photoshop are:
RGB (Colour) and Grayscale (B&W). There is also CMYK.
For the web RGB is the go, for printing CMYK, which stands for Cyan, Magenta, Yellow and Key is Black.
When you compare the two as a .JPG image on the web there is virtually no difference.
See the examples:
The Original Image Grayscaled Multicoloured Image Types - JPG (JPEG), GIF (CompuServe .GIF), PNG, or PSD. What's the difference?
The most common image format is .JPG.
However if you want an image with a transparent background, you cannot use a .JPG format as it will save with a white background. For a transparent, use a .GIF (CompuServe .GIF), or a .PNG.
A .PSD file is unique to Photoshop and can only be used in Photoshop. A .PSD file is used where you have not completed the final image and need to get back to it at a later stage. The .PSD file maintains the separate layers and is easily editable in Photoshop.
Image Mode Layers Add Text Creating Montages Removing Backgrounds Crop Images Image Adjustments Using Filters Home
