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About NormanPCN

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  1. NormanPCN

    [APh] HDR merge tone mapping

    Thanks for the reply. It did not occur to me to lower the tone "compression" slider when the default full setting is overblowing the highs. Seems the word "compression" is potentially misleading. At least to me. In my mind I was thinking that less "compression" would leave more highs. Thanks for making me look at that more. Anyway, lowering that does reduce the highs getting overblown with the AP tonemap but then introduces other changes in the tonemap that need to be compensated for, IMO. I choose those examples simply because when I was looking around for HDR software I came across those. In my view they are tough test cases. So I saved them to disk for future reference. What very little I have is way too easy to be a good test to evaluate the ability of an HDR merge and tone mapper to tweak tone range. Yes some of those TIFF examples referenced use the technique of generating extra bracket photos with the raw developer by deliberate over/under exposure. Not necessarily ideal practice but it works and frankly other HDR software handles those with aplomb. Anyway I have SNS-HDR. I have no need for Affinity HDR. I am just commenting about difficulties I have with the Affinity HDR offering on those tough examples. Comments they could maybe use to improve tone map/control capability in the future. With SNS I find it is easy to trivial to handle those test cases.
  2. The HDR merge works pretty well but we do not have any control over the white and blacks of the tone map/compression. The algorithm very much seems to want a certain amount of tones at the boundaries of the range. Shadow/highlight on tone map both harm contrast. Very much so with shadow. So these are not the best options to adjust these boundary tones. If we run the tone map persona a second time to get "more tone compression", well that does not help because the algorithm seems to want a certain amount of tones on the boundaries. Only the stuff inside those boundary tones gets the second dose of compression. I would suggest that we have some mechanism to control the algorithm needs for tones pushed to the boundaries. Something like whites and blacks controls. Also It could not hurt to have the tone compression control provide a little greater range/power. A double dose of this has issues without control over the tone pushes to the boundaries by the map. Some publicly available HDR bracket examples to demo my comments. Also note my relational comparison for Affinity HDR merge is against SNS-HDR and some Photomatix. "chain bridge" Note how the tone map algorithm really wants to blow out the lights on top of the bridge. Even -100% on highlights is not enough. A second dose of tone "compression" just blows the lights even more. "marble hall" an interior shot. The windows in the APh tone map are really bright and hard to control in relation to the darkness of the rest of the tone map. We lose contrast beyond a certain amount of highlight slider control. "sunset". Here we have two items. The blown brights of the sun and the super dark linear band of plants on the left side. Raising shadows for that dark band turns everything into mush. No contrast. The personal desire on situations like this is to have detail visible but dark. The brights/sun is reasonably controllable with highlights but with some contrast issues. But part of the point is, the tone map is pushing some % of tones to the boundaries and then we needs something else to attempt to compensate for the light/dark push of the tone map. It should be better to just let us control the white/black boundaries in the tone map controls and fine tune with the "standard" image editing controls. Also, it is easier to us to push tones down/up, darker/lighter than the reverse. The reverse can have contrast consequences. The tone map algorithm seems to do a very good job with tone compression while preserving contrast as best as possible. We only need a touch more/better control to be golden. "chain bridge" and "marble hall" HDR samples http://farbspiel-photo.com/learn/hdr-pics-to-play-with "sunset" HDR samples http://captainkimo.com/hdr-software-review-comparison/ Thanks for listening
  3. It would be very nice if Zoom to fit actually used all the available space. Right now it leaves a very large border around the image to the edges of the workspace. Maybe a preference. Zoom to fit with no border.
  4. Can we have a picker tool in the Develop and Tone map persona curves tool just like in the curves adjustment layer.
  5. NormanPCN

    Luminosity Masks for Adjustment & Filter Layers

    Thanks for posting these macros. They are very instructive and useful. Instructive in that I wanted to see the curves you used in the blend options.
  6. NormanPCN

    Luminosity Masks for Adjustment & Filter Layers

    For me, the macros imported but there were no individual macros inside the newly imported/created library group. I'm using the Windows 1.5 beta.
  7. NormanPCN

    JPEG 2000

    JPEG 2000 does have a lossless compression mode. If one is not looking for a highly compressed image, then IMO, we are better off just sticking with things that are widely supported like TIFF.
  8. The Shadows/Highlight control in apps like Adobe camera raw, Lightroom, On1 Photo 10 and raw and Capture one are all very similar and very easy to use and very powerful. The control does not reduce contrast as it does in Affinity Photo (AP). It seems the adjustment in AP is similar to a curves like adjustment. They are probably adaptive algorithms to image detail. Attached is a brutal test photo for shadow raising. To keep things short I only list Adobe Photoshop examples as comparison. On1 and Capture One are similar to PS/ACR. Camera raw AP with tone curve AP without tone curve One can see the AP examples reduce contrast. Things that reduce contrast are generally undesirable in photo editing. The suggestion here is to improve these functions to be more like other apps. Easy to use. Preserve contrast. Preserve color. Okay AP has an adaptive S/H function. The Live layer shadows and highlight function. This is clearly modeled after the classic Photoshop shadows/highlight image adjustment. However AP does not have all the controls that the PS adjustment has and IMO those controls are necessary to get a good result. Photoshop AP The AP photo has washed out colors which the color adjust control in PS does fix. I can mimic the AP result in PS by turning the color adjust to 0 and I also have to move the midtone contrast down a touch. My suggestion/request here is to add those controls to your Live filter S/H feature. They clearly help the PS function and would probably help yours as well. I have also tried the Live S/H function on HDR images and again get color washout. Thanks for listening.
  9. Photo has toolbar buttons for Auto levels, contrast, color and white balance. These seem to be destructive. I suggest that where applicable you put an auto button, with possible options, into the adjust/live layer control panel to setup the auto setting on the existing controls. This is non destructive and also provides the user ability to tweak the auto settings. For example, Photoshop has an auto button in levels adjustments with many types of auto adjustments one can choose from. It would seem to me that if it is useful to have a toolbar button for such adjustments then it could be even more useful to have those adjustments be available in non destructive layer(s) that are user tweakable. Some of those four items should fit into currently available adjust/live layers.

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