jorismak Posted December 12, 2016 Share Posted December 12, 2016 Hi there, PS has the options in the levels dialog to do an 'auto levels', but more importantly to set the thresholds for it. You can enter an amount of percentage of signal at which you want the set the level-markers so to speak. And then it has options to do that for every channel separately, or to keep the overal link between channels and a few other options. Is there something like that somewhere in Photo? The per-channel thing I can do by separating the channels into a R, G and B layer and doing 'auto levels' on those layers... but I want to set the thresholds somewhere :). Fixx and anon1 2 Quote Link to comment Share on other sites More sharing options...
Fixx Posted December 12, 2016 Share Posted December 12, 2016 AutoLevels and AutoCurves are in the wish list. I have not much use for threshold (even if it is nice) as I always handtune anyway. Quote Link to comment Share on other sites More sharing options...
jorismak Posted December 12, 2016 Author Share Posted December 12, 2016 There _is_ an Auto Levels.. and an Auto Contrast, Auto Color, Auto Whitebalance (which is really funky :P). I'm specially asking for the thresholds. Doing it manually is of course what I'm doing now, but the levels dialog is so f*cking small you cant' really see what you're doing in the regions where you have less than a few percent of signal. A log-view or something else to make the difference more extreme can also help. Quote Link to comment Share on other sites More sharing options...
Fixx Posted December 13, 2016 Share Posted December 13, 2016 No, the AutoTools that are available a dumb tools, you cannot adjust them. Curves and Levels should have autofunction that you can adjust, and indeed the tool is so f*cking small you cannot adjust it reliably. Just finding white and black points in curves is not so easily done. Quote Link to comment Share on other sites More sharing options...
hlarledge Posted February 27, 2017 Share Posted February 27, 2017 There _is_ an Auto Levels.. and an Auto Contrast, Auto Color, Auto Whitebalance (which is really funky :P). I've noticed when I open images in Photoshop that I've Auto-leveled and exported from Affinity Photo, I can click Photoshop's Auto-level option and get a vastly different looking image. How do we know which "auto-level" is more accurate? Quote Link to comment Share on other sites More sharing options...
specworkfan Posted November 6, 2017 Share Posted November 6, 2017 On 2/27/2017 at 3:22 PM, hlarledge said: I've noticed when I open images in Photoshop that I've Auto-leveled and exported from Affinity Photo, I can click Photoshop's Auto-level option and get a vastly different looking image. How do we know which "auto-level" is more accurate? By the dyanmic range present. You can use the color picker to see the values. It will work the same in 16, 24, or 32 bit. Auto-level is normalizing the values of the image. Think of warping a sound in Ableton to fit the beat, or time stretching a clip in Final Cut Pro. These are using similar alogrithms. I was dissappointed today to find out Affinity doesn’t have a good way of adjusting levels mathematically like Photoshop. I paint depth maps, but it’s very difficult, if not impossible, to paint a depth map with the full dynamic range. You simply need colors relative to each other, and that is feel. For certain uses though, these relative values might only be 1/3 of the dynamic range possible, so being able to drag the levels around or hit auto for max range is very useful. Quote Link to comment Share on other sites More sharing options...
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