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I've been having trouble about getting the photo in an SNES color mode (32768 colors), but the color table only allows me to have 256 colors. Is there a(n) (another) way to do this?
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Indexed color is limited to 256 colors. Use 8 or 16 bit RGB.
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I tried, & nothing happened... Am I missing something? I'm new here.
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A color table is by definition indexed color = max 256 colors. I don't know if other platforms allow color tables with a higher number, but it's not possible in Photoshop. Googling SNES color mode I only get results related to gaming consoles.
The "normal" way to work in Photoshop is in RGB mode, not indexed mode.
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Oh, okay.
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SNES is not a color table. Would you really want to choose each colour from a scroll down table of 32768 colours? And the colours are always the same. No... it is a 15-bit RGB, with 5-bits per channel. Whatever tool you would use to convert to SNES 15-bit colour will likely take 24-bit RGB and truncate or dither. https://en.wikipedia.org/wiki/List_of_monochrome_and_RGB_color_formats#15-bit_RGB
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I think the other responses are a bit confused about your intention. As far as I can tell, you want to reduce an image to a 256 colour version using the 15bit 32678 colours of the SNES, correct?
This is my workflow:
This will save the graphics format file as used in SNES development, and a colour palette PAL file.
This PAL file contains exact colour values based on the SNES 15bit 32768 colour pallette, and reduced to 8bit 256 colours for that particular image that was fed into it.
The problem with Photoshop: it refuses to load the generated PAL file, because PAL files come in different guises. Photoshop's support is limited to the Microsoft PAL variant, I believe.
While it is possible to convert colour palette files to ACT files that Photoshop understands, it involves obscure command line tools. Instead, just download the latest build of GIMP.
https://www.gimp.org/downloads/devel/
1) Open GIMP
2) Open your image from before.
3) Navigate to the PALETTE panel, and right-mouse click-->Import Palette.
4) Click PALETTE FILE, and select the generated PAL file. Click IMPORT
5) Choose IMAGE-->MODE-->INDEXED
6) Choose USE CUSTOM PALETTE and select your generated SnesGFX colour PAL file.
7) optional: enable dithering.
8) click CONVERT
Done. Save as a PNG file.