josev Posted December 2, 2021 Posted December 2, 2021 Hi, After a couple of years using Affinity products still looking thru the Adobe glasses, some disconcerting things like, pixelated images when are reduced in size. I don't understand why happens. Tried all options, looked thru the forums and other sources but is behaviour doesn't make sense to me. I had to use external sites to decrease size and not lost quality. Any guide to try? Thanks Quote
walt.farrell Posted December 2, 2021 Posted December 2, 2021 What size (pixel dimensions) are the images when you start? What size are you reducing to? How are you reducing? What format are you exporting? Which Affinity application are you using? Sample image available for us to look at? Both original, and reduced, would be helpful. Quote -- Walt Designer, Photo, and Publisher V1 and V2 at latest retail and beta releases PC: Desktop: Windows 11 Pro 23H2, 64GB memory, AMD Ryzen 9 5900 12-Core @ 3.00 GHz, NVIDIA GeForce RTX 3090 Laptop: Windows 11 Pro 23H2, 32GB memory, Intel Core i7-10750H @ 2.60GHz, Intel UHD Graphics Comet Lake GT2 and NVIDIA GeForce RTX 3070 Laptop GPU. Laptop 2: Windows 11 Pro 24H2, 16GB memory, Snapdragon(R) X Elite - X1E80100 - Qualcomm(R) Oryon(TM) 12 Core CPU 4.01 GHz, Qualcomm(R) Adreno(TM) X1-85 GPU iPad: iPad Pro M1, 12.9": iPadOS 18.3, Apple Pencil 2, Magic Keyboard Mac: 2023 M2 MacBook Air 15", 16GB memory, macOS Sequoia 15.0.1
josev Posted March 17, 2022 Author Posted March 17, 2022 Sorry Walt, missed your post. I'll back to this issue with more details when repeat the same process, have to do a couple of times per mont, if you need more information. The issue is with Affinity Photo. I work with big files A2 300ppp, are posters. Then I have to export in a format suitable for social networks most of the times I reduce the size to 25% and resolution to 72ppp. But no matter how I do it in Photo, the high quality background pictures loss all its quality. Text keep the quality. No matter if I do this process when export or reducing project size and resolution. This issue doesn't happen if use Designer or an external tool. But is not much comfortable have to use another tool for that simple process. The attached image is a section of 330x560px at 72ppp from the original one at 300ppp and reduced to 40% aprox. I tried with all kind of settings, but in this case use defaults: bilinear, resample checked. Thanks for your help Jose Quote
John Rostron Posted March 17, 2022 Posted March 17, 2022 What happens if you start with your A2 document at 300ppi and use Resize Document to reduce it to 25% without changing the ppi? The ppi are irrelevant if you are not printing. You should be viewing your final image at 100%. You should also try the different rescaling algorithms: bicubic, Lanczos etc. John Quote Windows 11, Affinity Photo 2.4.2 Designer 2.4.2 and Publisher 2.4.2 (mainly Photo). CPU: Intel Core i5 8500 @ 3.00GHz. RAM: 32.0GB DDR4 @ 1063MHz, Graphics: 2047MB NVIDIA GeForce GTX 1050
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