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Found 17 results

  1. I'm working on isolating the maximum value colour in each pixel, so in Apply Image I'm successfully using: DR=SR*rounddown(1-(max(SR,SG,SB)-SR)) DG=SG*rounddown(1-(max(SR,SG,SB)-SG)) DB=SB*rounddown(1-(max(SR,SG,SB)-SB)) rounddown is effectively a boolean operator that reduces this expression to 1 or 0, which happens when the R, G or B value is the same as the maximum value. Implementing this in Procedural Texture I'm getting an illogical and different result. R: R*rounddown(1-(max(R,G,B)-R)) G: G*rounddown(1-(max(R,G,B)-G)) B: B*rounddown(1-(max(R,G,B)-B)) In
  2. I've been tinkering with conditional expressions in Apply Image. Ideally you'd do something like (conditional-expression?A:B) so if conditional-expression (eg x>0.5) evaluates as true then the result is A otherwise B. But they are not natural, so my current thinking is: roundup(clamp(expression,0,1)) If expression evaluates as negative, then the result is 0 otherwise 1 (including if it is >1), so you then multiply the whole thing by what you want to actually end up with. The 'else' alternative would be found by adding a similar term with the expression reversed. eg.
  3. In Apply Image. 'Use Current Layer as Source'. All ok so far: Just click on 'Equations': Ooh, heck! Where did all those diagonal lines come from?
  4. I've made a macro for frequency separation (my first macro attempt in this software, I'm an Affinity noob). In one of the steps I'm dragging a layer over to the Apply Image palette. When I reset the image and apply the macro everything is hunky dory. The problem occurs when I run the macro on a different image. When I do this the macro is using the original layer from the image within I created the macro, for the Apply Image step! I haven't used the Load Source From File, I just dragged the layer according to instructions displayed in the palette and the layers are named th
  5. Currently, when using Apply Image in a macro, the image is hardcoded into the macro. It's hard to imagine a situation when this would be useful. I would really appreciate if the layer could be referenced instead...I believe that would make more sense.
  6. Hello. Is there any "apply image" function in AP similar to PS CC's own "apply image"? I want to use it for "apply one channel of N layer to current selected mask", or "apply one channel to another channel for RGB mixing - with different opacity and blend modes", etc. It's one of my most used functions in PS CC. I use it almost daily in the winter when it's dark outside, just to give blue channel better SNR by replacing whole or part of the noisy blue channel. Thanks Aleksander
  7. Hello DEVs First off, thanks again for great software, I've been sending ~250 portraits through it since I bought it, and I love how the application just simply replaced Photoshop Over to my "needs".. I really need some features from PS days, and I hope you guys see why. "Apply Image" in Affinity Photo is not alike PS CC's version of it. I used to use this often to grab an RGB, R, G or B. CMYK or C, M, Y, K or even LAB L, A or B from a layer, a document or a file on the disk, then "apply" it as a mask - inverted or not - on to the selected mask, usually in normal or lumino
  8. Hi All, New to Affinity, but does anyone know if you can use apply image on a layer mask? The link I attached here leads to a video describing what exactly I mean. Thank you! Ronny https://youtu.be/lwA34y8ZUbw
  9. I have 2 Documents: - IMAGE A, which size is 1000*1000px and - IMAGE B, which size is 4000*4000px I'm recording 2 macros while working on IMAGE A, which while running makes new layers on top, so at the end of the 2 macros the document has 4 layers (ALL NAMED) - (Pixel) - Composite (Pixel) - Effect (Pixel) - (Background) Basically, the 1st macro duplicates the background layer, runs a filter on it, then makes a composite, making a third layer. On this composite layer I run "Apply Image" and select the Effect image as source layer and it gets applied the composite. Afterward
  10. HI! I'm trying to use Apply image on iPad but I have unexpected results. First of all, how I can select another layer as source? In Desktop version I have to drag the layer on the Apply Image filter's box. (Why not to show all layers in the list???) Here on iPad it doesn't work. I didn't find any way to make it works. And I made a macro on Desktop version, doing something like this. Of course, it works with every single images. If I import that macro on iPad, I have very odd result. Something doesn't work at all on iPad with Apply Image.
  11. When using Apply Image equations, I am expecting to see a completely greyscale image when Da and Db are set to constant 0 in LAB space, however I see a heavy blue tint. See attached screenshot, left side should be greyscale instead.
  12. Blending-related wish list: Adding "Use beneath layers as initial Destination" button in Apply Image filter.Such button would allow for typical use case when you want to perform custom blending. Nowadays you have to: temporarily hide the layer "S" you want to blend, Merge Visible, unhide the layer "S" and move it below new merged layer "D", switch to layer "D", Apply Image and drag layer "S" onto its dialog window to use it as Source. Supporting presets for equations in Apply Image.It's obvious enhancement for better automation. Defining custom blend mode via Adjustment Layer (possibl
  13. I want to use Apply Image to apply the R channel to a photo in darken blend mode, as part of a procedure to darken the sky (I realise this might not be the best way to do this). But AP ignores the darken blend and gives me Normal I've got one layer with an RGB photo of a building with a sky above. The R channel is lighter than any other channel except in the sky. - I go to Apply Image and select Current Layer - In the equations, I set DR = SR, DG = SR and DB = SR - I set the Apply Image blend mode to normal; I see the grey scale R channel as I expect. - I set th
  14. Hi, Could someone shed some light on this for me? I have followed the tutorial on greyscale blending and have come across the following problem. I follow all processes and then, when I click /drag the new greyscale pixel layer into the Apply Image Filter Interface and click 'equation' the new 'greyscale layer' is not displayed, the original 'background layer has not been replaced, I therefore cannot bring back the colours using the equations. Have I set it up incorrectly? Many Thanks Simon R
  15. Hello, I have a question regarding the "Apply Image" function. I saw a tutorial where Apply Image was used in Photoshop to change the mask of an image to become the source image but as a mask (so just the dark and bright information). It was used to blend multiple exposures together. Is it also possible with the Apply Image feature in AP, or is there any other option? I hope it is clear what I mean, because I find it hard to explain. Thanks in advance :)
  16. Trying out the awesome new Equations feature in "Apply Image", I found that expressions that lead to out-of-bounds values are not handled gracefully (8-bit mode). My test was a simple color difference greenscreen keyer: DA = SG - max(SR, SB) The result has artifacts where this expression yields negative results. Doing the clamping manually works fine. DA = max(0, SG-max(SR, SB)) It would make more sense to always have this clamping performed automatically and implicitly for non-float documents. This would also ensure that more expressions and macros created for unbounded floating
  17. Hello, i try to apply the image i am working on to a mask. In PS i do it straight forward, create the new layer (with a mask) - select it and use Image > Apply Image ... I fail to do the same in AP ... would be nice to get a tip. BR and thank you Sascha
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