9/4/2023 0 Comments Photoshop convert to 8 bit![]() ![]() Perceptive: focuses on keeping colors our vision is most sensitive to.Perceptive, selective and adaptive are the selection methods – this only matters if the image has more than 256 colors and the software has to pick which colors to keep and which to discard. Local (perceptive, selective, adaptive): this mode converts the image to a new palette, taking only the currently selected image/document into account.Here’s a demo of the uniform mode on a picture of a cool bengal cat. As the above modes, guess it had it’s use on older software/hardware and it’s just a keepsake from the old versions of Photoshop. In general, this mode is pretty limited and I’ve never used it. All possible colors available within this limitation are saved into the palette, which results with a 216 color image at most. Uniform: in this mode, the value of each channel is divided into six – this means, that R, G or B channel can equal only to 1/6, 2/6, 5/6 etc.The use of those is limited, and I’m pretty sure those are just kept for the legacy reasons. System (MacOs), System (Windows), Web: those three are preset palettes, two system palettes of the 256 color modes of both Windows and Mac, and 216 colors which are the same between the two (web palette).A new palette is created, and all colors present in the image fit inside, none of them are altered or discarded. Exact: this option is only available when there’s exactly 256, or less than colors in the image.The options available here are as follows: Palette: This is where you can chose a palette to convert to, or chose what method the Photoshop should use to create one.Color management has always gone right over my head no matter the bonifides of the teacher as was the case with Dear Mrs Raynes who, despite a year of effort, couldn't even make a mediocre piano player out of me. In the case of pure Green, Red and Blue, a side by side comparison of the same image in each their own bit depth may not appear so different but what of all the colors in between? Are those values not also restricted by the 8 bit color space? How could a hobbled 8 bit version possibly look as good as the original 16 bit? You don't have to answer, I don't need to know and wouldn't understand anyway. That way the Sams Club grade setups most of us use (not all) know what to do with them. If ( according to this), pure green is 0/255/0 in 8 bit but 0/32768/0 in 16 bit (which can only be printed using special wide gamut equipment, or viewed on special purpose monitors) a supplanting of precise 16 bit values must take place in order to convert them to 8 bit. Just wondering out loud, if it's not too rude but, I have a question too. If 16-bits is what you are after, consider subscribing to Photoshop after all if you have a super display, that may be worth it. Do a test and convert a 16 bits to 8 bits and see if you can tell the difference by swithching between the two versions. If you keep in mind that by far the most important advantage of 16-bits is to avoid posterization, you no longer need 16-bits after the raw editing stage, so many users set the export to the editor to 8-bits. If you open a 16-bits layered tiff or psd, you'll be prompted to choose between keeping 16 bits and flattening the layers, or keeping the layers and converting to 8 bits. Then, you lose the ability to use layers and many detail adjustment tool. My understanding is that you would not be able to see the difference with more than 10 bits.īack to Elements: anything you edit in the raw module of Elements is calculated in 16 bits and you have the option to open the file in the pixel editor in 16 bits. ![]() ![]() For critical work there are pro displays like yours in 10 bits, which makes a significant difference. The internal calculation is made in 16 bits, which is overkill. If you shoot raw, here is some information about the bit depth precision available: ![]()
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