Decode PNG into raw RGB data

[i73]

Long story short I need to decode to raw RGB in order to encode to Av1 then decode it back to a workable file (testing new tech) and I just need to know if this is the correct way to decode a png to raw RGB:

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convert -size "3x3" -depth 8 encodeTest.png -colorspace RGB encodeTest.rgb

[snibgo]

Yes, but -size "3x3" does nothing.

[fmw42]

You need to know the size only when reading the raw RGB file. You will also need to know the depth when reading it. See https://imagemagick.org/Usage/formats/#rgb

[i73]

You need to know the size only when reading the raw RGB file. You will also need to know the depth when reading it. See https://imagemagick.org/Usage/formats/#rgb

I've added

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-depth 8

to my code, did you miss that or am I doing it wrong?

[fmw42]

Code: Select all

convert encodeTest.png -colorspace RGB -depth 8 encodeTest.rgb

[snibgo]

Perhaps I should add that "-colorspace RGB" will convert (presumably from non-linear sRGB) to linear RGB. That's fine, if that's what you want, but it may not be.