![]() If no selection exists in this layer, the whole layer will be transformed. When you activate the first button the tool works on the active layer. Remember that the Transform option persists when you quit the tool. This means we can just scale down the image to the height and width we want, without changing the aspect ratio. GIMP offers you three buttons which let you select which image element the transform tool will work on. For the purposes of this example, we'll assume gauge is square (as it often tends to be in stranded colourwork). You need to do a bit of maths, work out the percentages, and then apply them here (in GIMP you can change sizes based on percentages, as well as pixels and other measurements). The trick, I have found, is to distort your image in the opposite direction to your gauge before overlaying the square grid. If, however, your gauge is not square and you put a square grid on top of your image, you're going to end up with a slightly wonky looking image. If you have square gauge (i.e., 24 sts to 24 rows over 4 inches square), and you put a square grid on top of your image, everything works out fine. The answer (as so often is the case with knitting) is "GAUGE!" "Why would I want to do that?" I hear you cry. ![]() ![]() To do this, first, you need to save the current photo with the transparent background. If you click the chain so it's unlinked, you can enter unrelated values for width and height, and so change the aspect ratio of the image, if you want to. Once you have your subject with a transparent background, you can use GIMP to paste it into any other image. See the little chain icon next to the height and width boxes? When the chain is linked together it means that if you enter a number for height (or width), the number for width (or height) will change automatically to preserve the aspect ratio. and in the dialogue box that comes up, I type in 100 pixels for the height:
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