cannot save after changing mode to grayscale

JL
Posted By
John_Lemmon
Oct 7, 2003
Views
242
Replies
1
Status
Closed
I scanned an image as a bitmap and saved it as a .bmp then I changed the mode from bitmap to grayscale, then save and close; when I reopen the file is has changed mode to index. I guess I’m doing something wrong but I don’t know what. Thanks in advance. Photoshop 6.0 PC.
John
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change grayscale mode save

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DM
Don_McCahill
Oct 7, 2003
When you change the mode to grayscale, you are adding 253 levels of color to the image, and it can no longer be saved as bitmap (which has 2 levels). The only modes that handle 255 colors (or levels of gray) are grayscale and bitmap. Index can handle grayscale, grayscale cannot handle indexed color, so the program opens in index when it finds 255 levels of gray.

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