Feature request: Histogram Tool

Permanently deleted user

• January 30, 2015 18:40

I often temporarily crop an image to be able to see the histogram of that cropped region. This is useful to see the RGB color balance of a deep shadow, or the average luminance of a cheek on a model, etc. I find this much more practical than the color readout pins that read off too small an area, and are not as easy to visually interpret like a histogram.

So, I would love a tool that could give me a live histogram of the area under the tool cursor. The cursor size could be round or square or even user selectable, and the size of the sample area could be changed like any other tool. I could then move my cursor around, watching the histogram, and making adjustements based on what I interpret from the histogram. Something like moving the loupe around, but instead of a magnified area, a histogram...

M

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  Ian Wilson

  Moderator

  • January 30, 2015 23:19

  

  But you can't really have a histogram of a point can you? It shows the numbers of pixels of various levels over the range of the image (or of the cropped area). However if you move the cursor around the image, you see an orange line on the histogram that shows where the place you are pointing at comes in the range.
  
  Or am I misunderstanding what you want to do?
  
  Ian

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  Permanently deleted user

  • February 02, 2015 18:23

  [quote="Ian3" wrote:
  But you can't really have a histogram of a point can you? It shows the numbers of pixels of various levels over the range of the image (or of the cropped area). However if you move the cursor around the image, you see an orange line on the histogram that shows where the place you are pointing at comes in the range.
  
  Or am I misunderstanding what you want to do?
  
  Ian

  
  Not of a single point, no, there are readout pins and the line as you say for this. What I would like is a histogram of an AREA, defined by a brush like cursor, the size of which can be adjusted...

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  SFA

  • February 02, 2015 20:01

  If you want to see where a colour adjustment would be applied on a local basis I would have thought that selecting a colour range and using a "show selected colour" image would be more useful - it is certainly more typical I think. Something I use with C1 and another product that I was using well before C1.
  
  The colour editor tool would be your friend.
  
  I have used another application whereby the selected "crop" or the current view (think 400% zoom as an example) is used to provide information for a local histogram. It is sort of interesting but ultimately not that much use, in my opinion. But then I'm not really a histogram person unless something really strange seems to be going on.
  
  
  Grant

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  NNN635521646430076044

  • February 20, 2015 10:46

  I would also use a histogram tool quite often 😄 so yes please implement it!
  
  More easy to implement, but also quite useful would be the option that the color readouts show HSL instead of RGB.

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