I don't honestly know, to be honest. I'm just used to doing things one step at a time. Kind of like the Unix philosophy where you have one tool to perform each intermediate task in a composite process instead of the Windows "one tool does everything including the kitchen sink" approach. Old habits die hard
A few to get you started
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
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
Re: Need help with DM42 pictures
There are only 10 kinds of people in the world: those who understand binary and those who do not.
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Re: Need help with DM42 pictures
You should use the netpbm (or GraphicsMagick or ImageMagick...) command line utilities thengrsbanks wrote: ↑Thu Mar 08, 2018 5:39 pmI don't honestly know, to be honest. I'm just used to doing things one step at a time. Kind of like the Unix philosophy where you have one tool to perform each intermediate task in a composite process instead of the Windows "one tool does everything including the kitchen sink" approach. Old habits die hard
DM42 SN: 00079,00635,3643
DM41X
DM15L, DM16L, DM41L
DM41X
DM15L, DM16L, DM41L
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Re: A few to get you started
The way I made my album ( viewtopic.php?f=14&t=537 ) was with GIMP.
You can right-click copy an image from your browser, and crop, adjust brightnesses (including per color brightness), and convert to grayscale (gives a good idea of what the final image will look like), then scale.
To convert to 1-bit (with dithering), make sure you have an image that is already the correct size, and go through the following menus:
Image ⇒ Mode ⇒ Indexed ⇒ Use black and white (1-bit) pallette.
Then from the dropdown menu, select Floyd-Steinburg (normal) and click convert.
Done!
You can right-click copy an image from your browser, and crop, adjust brightnesses (including per color brightness), and convert to grayscale (gives a good idea of what the final image will look like), then scale.
To convert to 1-bit (with dithering), make sure you have an image that is already the correct size, and go through the following menus:
Image ⇒ Mode ⇒ Indexed ⇒ Use black and white (1-bit) pallette.
Then from the dropdown menu, select Floyd-Steinburg (normal) and click convert.
Done!
Re: Need help with DM42 pictures
I was using GIMP successfully for a while but now, I'm not sure what I'm doing wrong. Windows 10 warned me my GIMP was out of date and I updated to version 2.10.... I'm using "Image > Mode > Indexed ...to find the option to convert to 1-bit monochrome and choose the dithering method. The bmp files are the expected size in pixels as well as kilobytes. My DM42 won't display them but it will still display the older bmps I made in GIMP prior to the upgrade. Has anyone else run into an issue with the latest stable GIMP?grsbanks wrote: ↑Thu Mar 08, 2018 1:11 pmI've always used the GIMPtoml_12953 wrote: ↑Thu Mar 08, 2018 9:59 amPaint has no dithering. You'll get just black and white patches.
Start by converting to greyscale at the required resolution of 400x240, then convert to 1-bit depth with Floyd-Steinberg dithering and you'll get pretty good results.
DM42 SN: 00076
DM15, HP 28c, HP 12c, HP 10b, HP 20b, HP 30b, HP 17bII, HP 42s, HP 35s, WP 34s, NP-25, TI-83+, teenix multicalc
DM15, HP 28c, HP 12c, HP 10b, HP 20b, HP 30b, HP 17bII, HP 42s, HP 35s, WP 34s, NP-25, TI-83+, teenix multicalc