If you intend using the masks with the relief images using an application such as Photoshop, you will find operations run a lot faster if you allocate more “memory,” or “RAM” (random access memory), to the application – around four or five times the size of image that you are working on is desirable. For example, if you are working on an image of 4 MB, say, you will find operations run a lot faster (sometimes by as much as 400%) if you allocate 20 MB to your application. When Photoshop needs more memory than the amount allocated, it will resort to your hard disk for extra memory (“virtual memory”, or “scratch disk” space), a process which is a great deal slower than using “real” memory (RAM). Note: to access more than 8 MB of RAM (provided you have more than 8MB of RAM installed).
If you intend converting a map to color, manipulating it, and finally outputting it as separated film – do your colorizing in RGB mode, and only switch to CMYK immediately prior to saving it for the final time. RGB is much less demanding on RAM than CMYK, since it uses only three channels, whereas CMYK mode uses four.
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