![]() ![]() Suppose that the percentages for this value break down as: 50% of the pixels of that value are the first color, 30% of them are the 2nd color, 18% of are the 3rd and 2% of a fourth. If “Use Subcolors” is off, then the dominant color is used (the one with the most pixels with that value) if the option is checked, then the colors are sampled in a weighted fashion.įor example, suppose you are trying to sample a color photograph that for a particular value in the range 0-255, say 101, there are four distinct colors with that overall value, each in different amounts. This option determines how the colors are sampled to affect the corresponding destination values. In this case the filter has to decide which color gets mapped to the same value point in the destination. The “Use Subcolors” option only comes into play if you are mapping a sample image that has more than one color for the same luminosity level. On my Athlon 1800+/1.5GB the filter took 78 seconds to run on a 3000×2000 pixel image.ĭiscussion of Sample Colorize filter options Use Subcolors Play with this option a bit and you’ll see what I mean.Īfter adjusting settings to your liking, click “Apply” to tone the actual image. If Original Intensity is checked, then adjusting the In Level sliders just changes the distribution of sample colors without affecting luminosity. If you want to adjust the luminosity (brightness or darkness) of the destination image then uncheck the “Original Intensity” option and adjust the In Level sliders accordingly (if you try to run an ordinary Levels command after the toning you may shift the toning color in unexpected ways). See the discussion in the Tips section below for some information on these.Ĭlick “Get Sample Colors” to get the sample colors into a the destination preview. In the destination side options, you probably want to keep the “Hold Intensity” checked. You probably want to keep the “Smooth Samplecolors” checkbox checked and the “Use subcolors” unchecked. ![]() ![]() Move your cursor focus back to the image to be toned and run the Sample Colorize filter (Filters/Colors/Map/Sample Colorize).In the sample side options, choose the appropriate toning image in the drop down box. Load the second image that has the desired toning.You can load more than one if you want a selection to choose from. ![]() In this case, I decomposed the image and used the Red channel. Just make sure the image is back in RGB mode when you are done (Image/Mode/RGB). If desired, convert it to B&W.If you don’t, the image will be converted anyway, so if you are picky about how this is done do it yourself. In this tutorial I’ll show you how to use this filter to tone your B&W images with a wide variety of tonings and to rip your own tonings. In other words, most toned B&W images, but also most duotones, tritones, quadtones, etc. It is particularly effective on extracting tonings from images where there is only a single tone corresponding to a particular luminosity level. This versatile filter allows you to “rip” (sample) the colors used in an image and apply them to a grayscale image. The GIMP has a great filter called Sample Colorize. Of course you can reproduce this procedure (with only slight variations) in the GIMP, but fortunately for GIMP users, there is a much, much easier way! Ever seen a great toned B&W image and wished you could tone your images that way? Wondering how difficult it is to do your own sepia/platinum/silver/cyanotype/duotones/tritones/quadtones/ toning in the digital darkroom?Īt Photoshop for Photographers (click in the left column on “Black and White” and then on “Copy a Tone”), Thomas Niemann describes an excellent technique for “mimicking” tonings found in existing images and applying them to your own images using Curves. ![]()
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