![]() Applying no input profile is generally only useful for analytical purposes to show images in the camera's native RGB color space, or in extreme cases to prevent clipping of channels when the camera has recorded colors outside of conventional gamuts. No color conversion will take place and a unit transform of the image data is applied. RawTherapee's interface for choosing the input profile No Profile ![]() There are several ways to apply an input profile. The input profile is applied to the image data at the beginning of RawTherapee's processing pipeline because most tools depend on it. ![]() Without a camera-specific input profile, accurate color representation is impossible. Elle Stone's article, DCamProf's documentation or How to create DCP color profiles. Such a profile is the result of the analysis of how specific colors and tones are captured, processed and represented as raw data by the camera (for more details, see e.g. This conversion requires an input profile made specifically for the camera. 3.13 Possible example of use to modify/improve the behavior of the Input profileĪn essential first step in raw processing is the faithful conversion of the camera sensor data to an internal RGB color space.3.12.1 Display Matrix XYZ-RGB - "Mat_xyz_bradford".3.12 How the "Primaries and White Point" algorithm works.3.10.4 Change primaries - Custom CIExy diagram.3.10.1 Original image (Rawtherapee - default).3.7.1 Differences compared to a classic tone curve.3.6 Where is it located in the toolchain pipeline?.3.5 Three main uses (with or without CIECAM).3.4 Which data and profiles are used or modified?.3.3 Use of data from the "CIE xy" diagram in Abstract profiles.If the overall effect is too strong, you could also reduce the opacity of the LCh colour layer. Note: If there are areas of colour you didn't want to change, such as the blue sky, you could use a layer mask on the LCh colour layer to apply the colour change selectively. Here's an example toggling the original image layer, and LCh Color layer Then undo the changes (Ctrl+Z) so you are back to the original photographĭo Edit > Paste as > New Layer, then set the layer blending mode to "LCh Color" Select all (Ctrl+A), and copy (Ctrl+C) that recoloured image. This will create a somewhat extreme recoloured image, but don't worry, the next steps will fix it. Leave this document open.ĭo File > Open, and open an image you want to recolourĬhange the image mode to to Indexed colour as before, but this time choose a custom palette, click on the palette icon and select the palette you made previously, choose dithering: Floyd-Steinberg (reduced color bleeding). You should be able to find the indexed colour palette for the current document. Take an image of your colour palette (a screenshot), open it in GIMP and do Image > Mode > Indexed Color.It will still look like a photograph, just with the colours tweaked. This is a subtle technique, which doesn't completely destroy an image. What's it called? Colour matching, colour mapping, etc.Īnyway. Is there a plugin in Gimp or a website or whatever that does something like this (semi-)automatically, given an image and a color palette? Whatever I put in for the threshold, it either doesn't change anything in the image or changes areas it's not supposed to. I've tried Map > Color Exchange in Gimp but the RGB thresholds confuse me. What is that called? Is there a mechanism in Gimp, for example, that does something like this? I've been trying to google it but to google something you need to know the keywords/terms for this type of thing. In other words, you want all the greens to lean more towards the green in your color palette (in hue, saturation, etc), all the oranges lean towards the orange in your palette, etc. You also have separate color palette (ex: ) and what you are looking to do is to slightly modify the photo so that it fits the color palette more. I'm looking for terms, search keywords, or filter names related to how to do the following:
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