JohnWheeler

Lives in United States United States
Works as a Retired
Joined on May 31, 2011

JohnWheeler's recent activity

  • Filer > Camera Raw Filter is part of Photoshop and gives you access a linear gradient where you can adjust tonality in any way you want including contrast.  Easy to use so why not. Also, if you ...
  • My take is that you are reading into what Nikon engineers do, means something about JPEG vs raw.  I don't think that is the case. I think it is simply that Nikon's business model is trying to ...
  • Here are a few thoughts (and note it could be a bug in the software too) 1) Always possible that there is a connection with the underlying software ArgylCMS.  It too has been updated recently.  Not ...
  • I do have Topaz's JPEG to raw and the marketing videos are much better than my experience with the average JPEG image. I would say that it is useful in restoration when you must start with a JPEG  ...
  • Hi sjs9828 Just to be clear, my understanding is that the burst  rate of your camera won't be any faster with any of the saved file formats yet the total lenght of time or total shots under burst ...
  • What is best for you depends on how you are best at learning, one on one, books, videos, trying things out as you go, fully course of just topical Lynda.com (bought out by LinkedIn) is my preferred ...
  • Replied in JPG EXPORTS
    Hi Bodensee Don't be irritated as your results are to be expected with JPEG compression and there is nothing to worry about (other than JPEG is 8 bit depth in all cases so you lose some picture ...
  • Hi clarnibass Noet the triangle symbol with the explanation point.  You need to click on that anytime it shows up to recalculate the histogram.  Otherwise, the histogram is bogus data.  I suggest ...
  • Hi clarnbass, You are correct, the Brightness Slider in the Brightness/Contrast Adjustment Layer is very similar to the ACR exposure slider. I have included below the measured transfer ...
  • Hi clarnibass I assume you are referring to the Exposure Adjustment Layer and moving just the Exposure slider vs the Brightness/Contrast Adjustment Layer and moving only the brightness slider. Here ...
  • Hi imprfdbk I may have an answer for you. There is a special blend mode available to Group Layers that is not available to all Layers and that is named Pass-Through.   This blend mode effects in ...
  • Hi Jan Yes I have and have used Topaz JPEG to raw. The title of the software unfortunately sets expectations way above what realistically can be done on average and you don't get 16 bit data back ...
  • Yes you can Fred and glad you brought that up. It also includes a number of other lossless transformations as well. jpegtran comes included with every Mac system and accessible through the ...
  • You can absolutely trust Adobe to do which many companies do and that is they will focus on profit and growth.  That's how the executives keep their jobs. Elasticity and pricing point to maximize ...
  • Pixelgenius has not replied yet to your or my question yet with a little more looking on the internet found a possible explanation of why Pixelgenius did see degradation and I did not. Looking at ...
  • OK great.   For rotations or 90 degree increments wholly in Photoshop (no JPEG saves involved) do you see zero degradation (that's what I get btw)
  • In pursuit of the difference we are seeing, are you saying you rotate twice by 180 degrees before saving as new JPEG using Save As level 11?
  • If pixel dimensions have a multiple of 8 there is an option for rotating in 90 degree increments and resaving without loss yet not all software use that feature   Strange we are getting different ...
  • Hi  PixelGenius Try an image where dimensions are not a multiple. Rotate 180 degrees and save to JPEG under different name. Close all PS windows Pull in original image, overlay with the recently ...
  • Herve, what you stated is my understanding as well. The JPEG Standard allows an option for lossless rotation and resave if both width and height are a multiple of 16 pixels unless chroma sub ...
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Last post May 9, 2013
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