Help with off images

Library of images to use as OFFIMG screens on the DM41X and DM42
Forum rules
Do you have a creative streak? Post your OFFIMG photos here.

Images MUST be in Windows-NT .bmp format at a resolution of 400x240 pixels and 1-bit colour depth or they will not be displayed by the DM42. Images that do not meet this requirement will be removed from the forum :)
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Walter
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Re: Help with off images

Post by Walter »

toml_12953 wrote:
Tue Jan 29, 2019 1:37 pm
mezoganet wrote:
Tue Jan 29, 2019 11:29 am
At the end of the process, resizing, dithering... I EXPORT the file to bmp, don't save it but export it as bmp and it works.
Correct. Gimp (at least the version I use) doesn't even let you use Save or Save As to save a file in BMP format. You have to use Export.
Paint lets you Save As in monochrome bmp. Just FYI.
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mezoganet
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Re: Help with off images

Post by mezoganet »

Walter,

If you use Windows pain, sorry Paint, you maybe right and save the file as you explain.

But, GIMP/Linux needs ‘export as bmp’ to save correctly the file.
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rprosperi
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Re: Help with off images

Post by rprosperi »

toml_12953 wrote:
Tue Jan 29, 2019 1:59 pm
And once more, how do you create a loadable image in Paint?
In Paint, you need to set the .BMP file image properties of size and color depth ("Black and White") before you draw (or paste) the image, then save the file. Changing size or depth after you've created the image does not work (Paint works, but the file doesn't load properly).
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toml_12953
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Re: Help with off images

Post by toml_12953 »

rprosperi wrote:
Tue Jan 29, 2019 3:00 pm
toml_12953 wrote:
Tue Jan 29, 2019 1:59 pm
And once more, how do you create a loadable image in Paint?
In Paint, you need to set the .BMP file image properties of size and color depth ("Black and White") before you draw (or paste) the image, then save the file. Changing size or depth after you've created the image does not work (Paint works, but the file doesn't load properly).
When I set the image to black and white and paste a color image in Paint, all I get is a black screen.
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elgarak
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Re: Help with off images

Post by elgarak »

Maybe this?

As I have posted elsewhere, my version of GIMP (on Linux) does not write BMP files properly and corrupts the header. Browsing through the interwebs tells me it happens with a variety of GIMP versions, not just mine, and not just on Linux. And it's not only the DM42 that cannot read them. I always check the file if it opens properly before I put in on the DM42.

I export to PNG, and then use ImageMagick to make the BMP.
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