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hanshab

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Everything posted by hanshab

  1. Just to clarify, I saw this issue with levels also in 1.6 version. Sometimes the histogram would show up and sometimes it would not. Thanks
  2. even when using offsets i feel it's broken. And the user guide is vacuous wrt LAB. For instance in AO pull down when you modify the lightness slider you are changing magenta. when you modify the BO slider you are again modifying magenta... This should not happen. I hope Serif can fix this like it works in photoshop. I use LAB color mode almost exclusively due its strong benefits.
  3. I believe the channel mixer in LAB color space may still be broken and the user guide for channel mixer only talks about RGB mode Here is what it says: The following settings can be adjusted: Output Channel: Select a colour mode from the first pop-up menu. Specify a single colour channel to apply the adjustment to, including the layer's alpha channel. Select from the second pop-up menu. The sliders control the contribution of the named colour to the selected output channel. Drag the slider to the left to decrease the level of the named colour, drag the slider to the right to increase it. When in LAB and say you select AOpponent from the drop down then when you reduce the AO slider to ninety percent you have taken out most of the magenta and the green remains. Once you go past zero to the negatives nothing more happens. When you move the AO slider to greater than 100% you increase the magenta. So even though the slider allows you can go below zero to negatives, nothing really happens. Now when you move AO to 50%. IN any case when you move BO to 50% with the AO selected in the drop down, you basically get close to the original because you are adding yellow but you cannot add blue. When selecting BO and making the same adjustments it acts similarly although for different colors. In any case the user guid is wrong for LAB and I feel there is an issue with the way the sliders are set up for LAB which acts differently than RGB. AM I MISSING SOMEHTING?? THANKS
  4. its still broken in LAB. even with a flattened image.
  5. Ich auch habe die 1.7.1 und 1.7.2beta runtergelassen. 1.71 hatte Probleme mit LAB in selective color adjustment, wurde aber korrigiert in 1.7.2 beta. 1.7.2 hat immer noch Probleme mit channel mixer in LAB.
  6. I may be missing something but when I select 32 bit output format in the develop assistant in the develop module, the output (color profile) slider selects sRGB IEC61966-2.1 (linear) which I think is the 8 bit version. I checked this in Wikipedia. However when I develop the photo and goes to the Photo persona it is in 32 bit mode. So O fee; the the slider in the develop persona is not correct when it selects sRGB IEC61966-2.1 (linear). There are a variety of color formats that can be selected in that slider but the RGB32 format cannot be selected. This is the video format that the photo persona seems to go to. I believe the slider in the develop module should reflect what was selected in the develop assistant Thank You
  7. Actually I am agreeing with you in my statement above I got the blue image as well when I set Ao and Bo both to zero... Even when fixed, the channel mixer will work differently in LAB than in RGB. The Ao and Bo sliders don't really work right now and I dont know what algorithm was used. I would not even speculate...
  8. My experience is as follows in LAB. When you reduce say Ao to 50% then what happens is that only the magenta is reduced to 50% but not the green it stays at 100%. When you reduce the Bo ( after resetting the Ao to 100%) what happens is only the yellow gets reduced to 50%, the blue does not get reduced. I believe that is what IPv6 may mean. BUT in LAB the AO and Bo sliders each work on two colors which is not the case in RGB . However, if in Ao you reduce both Ao and Bo to 50% then the colors are true. Same is true in Bo . Is this the way it should be? Thanks
  9. I also found the shadows slider in tone mappings does absolutely nothing on a variety of photos. The highlights adjustment there is extremely sensitive. in the photo person the highlights. shadows adjustment should NEVER be used. The live filter version gives strange results win RGB when you apply stronger versions of the filter. by changing the contrast All this is suggesting that the algorithm may need to be reworked. thanks
  10. I think it would be a very good idea if Serif would let users know that the shadows highlights adjustment should not be used as Andy states above. Would save some users frustration. thanks.
  11. hanshab

    Nik Collection

    I have the old NIK collection, I had paid Google for it before it went free at Google. I t works just fine as long as you follow the instructions given in earlier Affinity tutorials. I use it all the time.
  12. I have found a possible issue using the selective colder adjustment when using the LAB color space. I work in the LAB color space primarily because of the ability to separate color from lightness. I had no problem with this in Affinity Photo 1.6.7 Notice that blue has changed to magenta. I have tried this in RGB and found that this problem does not exist there. The first picture is the original TIFF file loaded from either Capture 1 pro 12 or Lightroom. The second picture is the same picture after the selective color adjustment is applied in Affinity photo. Notice no changes of any kind have been made from within the selective color adjustment. THis is how it comes up when you select the adjustment. If you select darken color blend mode then the effect goes away but does darken the colors. I dont believe this should happen. Thanks
  13. Please look also at my input given here. I have not received any response about this but it is a real problem for me. Selective color adjustment does not work win LAB color space Please see and give me some input sas to when this will be fixed. Thanks a lot here is my input:
  14. its even worse when you use LAB color space.
  15. The LAB selective color problem defined above still exists in release 1.7.1 Please advise
  16. Is did a little more research. This seems to happen to saturated blue only in LAB where it changes a saturated blue to magenta without making any changes ie happens as soon as you call up the selective color adjustment . The first picture is before selecting selective color adjustment, second is after selecting selective color adjustment without making any changes in the sliders. In the first picture I saturated the blue fully first. The previous picture I submitted had a lot of saturated blue in it.
  17. selective color adjustment has this problem in LAB where it changes a saturated blue to magenta without making any changes ie happens as soon as you call up the selective color adjustment first picture is before selecting selective color adjustment second is after selecting selective color adjustment without making any changes in the sliders.
  18. Dodge and burn blend modes are one of the 8 blend modes that you change the amount of color through the FILL opacity and not the general opacity . For this effect I use an HSL adjustment and just modify the value of the FILL slider since general opacity does not really work for this blend mode. When you leave the FILL at 100% then the effect uses only 8 colours. As you reduce the slider you add more and more colours and you also restrict the effect to the midtones and shadows, As you decrease the slider to about 15% you are then affecting only the shadows. The dodge blend mode works the same way. The difference from the burn blend mode is as you reduce the FILL slider on an adjustment layer such as HSL you restrict the effect to more and more of the brights, SO with the FILL slider set to 15% you are targeting the brights. Set the fill sliders to taste as each photo is different. The effect is not as pronounced as saturate by subtract blend mode which I have submitted earlier but have included here below as well in case you missed it. n here is a link to that discussion: I have generated a macro that does this, set the FILL level to what looks right for you . Import them from the macro NOT the library, they single macro color burn: dodge to saturate.afmacro saturate w subtract blend mode.afmacro
  19. hanshab

    Macro Updates for v1.7

    Thanks smadell. Great stuff. I like to use saturation/desaturation just like luminosity to create depth in pictures so I have some suggestions: . On your desaturate macro after it has run you can use a black brush with high opacity to put saturation back in locally. The opacity determines how much saturation you put back in locally. You can also use a grey brush but then you have to know how much saturation you want to put back in in certain places. You can do the same thing with the macro I enclosed which is simple. Its adds an HSL layer set to saturation mode then inverts it; you have to set the saturation to the minimum you want then you can paint back the amount of saturation using a white brush with your selected opacity , I updated your fix undersaturated macro so that you can increase saturation selectively by using a white brush with appropriate opacity settings. Its a trivial change to your macro and all it does is invert the top layer since it is in saturation blend model. You can then use a white brush with appropriate opacity to paint in the opacity where you want. I have included the macros below Thanks again for your work. fix oversat w white brsh &opacity.afmacro FIX undersat w white brush& opacity.afmacro
  20. Hello James. I still refer to the old set of tutorials now and then. Lately I needed to look at the LUT tutorial. Are they still available ? There is a lot of good information there.
  21. The saturation of a color is determined by a combination of light intensity and how much it is distributed across the spectrum of different wavelengths. The math for saturation includes luminosity. An interesting way to saturate a photo is using the subtract blend mode. This can be achieved by making a copy of the photo then inverting it. This changes each color to the complementary color. But it also affects the luminosity. You then apply the subtract blend mode. You are in essence subtracting the complementary colors from the original photo that has the effect of saturating the original color. In RGB mode, when inverting, you not only invert the color but you also invert the luminosity. This has will darken the photo colours. So in practice what I have found you may need to change the brightness of the midtones and/or the shadows. You can then apply blend ranges to apply the difference blend mode but I find keeping the highlights from the original works best. I have included a macro here that does this. The macro lets you manipulate the brightness and contrast of the midtones and shadows if you wish. YOU can also manipulate the blend range if you desire. Have fun. Note that this works in the RGB color space but NOT in the LAB color space as the math is different. saturate by subtract RGB.afmacro
  22. hanshab

    Saturate a photo using subtract mode

    elow are examples of before and after the saturate by subtract macro has run
  23. hanshab

    Saturate a photo using subtract mode

    There was a step missing in the macro, which is initially to duplicate the layer. I fixed that and put in more explanations to the macro. The key is the inversion and the subtraction which takes out the complementary colours of RGB to make the RGB more saturated. However what John Rostrow got is typical if you don't adjust opacity and the brightness and contrast of the colours once the subtract mode is applied. This is because in RGB as opposed to LAB, both colours and contrast are adjusted. In the macro I allow you to adjust all these parameters to taste since each picture will be different. The saturation is very deep as is the contrast so those will need to be adjusted. I recommend that you set the global opacity to between 10 to 20 percent saturate by subtract RGB.afmacro
  24. hanshab

    A few free macros - tested in AFP 1.6 & 1.7 Beta

    Very nicely done.
  25. hanshab

    Saturate a photo using subtract mode

    I forgot to add that it is a single macro and has to be uploaded from the macro and not the macro library pull down menu.
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