![]() The LAB option was not in my initial version of GIMP (ver 1.2.1), but I got the newer version of the plug-in at the GIMP Plug-in Registry and compiled it myself. For any reference to the “ LAB” image or “luminosity” channel below, substitute the “ HSV” image/”value” window. In that case use HSV (hue/saturation/value) instead. Note 1: if you happen to have an older version of the compose/decompose plug-in it may not have the LAB option. This will allow us to isolate and sharpen the luninosity channel which is a) the most important, and b) should be the cleanest in terms of noise.Īt this point I usually turn off visibility of the A and B layers in the Layers dialog by clicking on the “eyes”. This will create a new window with the image decomposed into the Luminosity (“brightness”), A and B channels as 3 layers. Check the “As layers” checkbox (see Note 2) and click OK. In the decompose dialog box, select LAB (or HSV see Note 1). ![]() Right-click on the duplicate image and select Image -> Mode -> Decompose. You can open it later to compare to the result. It might be wise to minimize the original image window now. Step 2 ¶ĭuplicate the image by pressing Ctrl+D or right-click and select Image -> Duplicate. Sharpening should always be the last step that you do. Note: be sure to do any other editing that you want to on the image first, especially downsampling or upsampling (resizing). It is noticeably soft, probably due to bad autofocus. Here’s the original image loaded into GIMP. I didn’t want to shrink the image windows down like I usually do for the other tutorials since sharpening and noise are subtle and really show up better at these larger sizes. You may want to maximize your browser window to properly see this tutorial. New information and comparison with the “warp sharp” script! The Procedure ¶ I adapted it for GIMP from a Photoshop tutorial on the photography web site (great web site BTW, I recommend it). Giving credit where credit is due: I did not come up with this method. Then you can load the channel mask as a selection and apply the unsharp mask to just the edges. create a channel mask that contains only the edges in the image.sharpen only the luminosity channel, and.This technique does two “smart” things to avoid sharpening noise: a blue sky-the blue channel tends to get a lot of noise). Often there will be large areas of the image that you know you don’t want to sharpen (e.g. A really good example of this is when you have an image with a lot of high ISO noise or film grain applying across-the-board sharpening will enhance the noise/grain and make it even more visible, especially in large prints. Applying an unsharp mask to an entire image is not always appropriate. In this tutorial I’ll show you how to do smart sharpening of your images. Jeschke and may not be used without permission of the author. Although this isn’t a perfect workaround, it does allow you the freedom to post an entire panoramic photograph on the platform.Text and images Copyright (C) 2002 Eric R. Using an app like Adobe Photoshop, you’ll need to resize your photo down and add a background to make it fit into the 4:5 ratio.u003cbru003eu003cbru003eYou can also use a photo shop app to cut the panorama photo in half and post it separately using the multiple photos options. You can still do it, but you’ll need to use photoshop to get the job done. Can I post a panorama photo?ĭue to the sizing requirements, it’s not likely you’ll have the option to fit an entire panorama photo into one picture. Instagram is designed around photography and creativity, so it can be incredibly frustrating when you can’t tailor the size of your photo exactly the way it looks its best.u003cbru003eu003cbru003eIf you try to post a set of images together where some are in landscape orientation while others in portrait mode, Instagram will resize them all to be more uniform.u003cbru003eu003cbru003eThe way to bypass this function is by using one of the third-party applications we’ve mentioned, scale your photos, put a white background behind the image, resize it using the 4:5 ratio then upload it to your Instagram account. Frequently Asked Questions How do I post multiple pictures of different sizes?
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