[BUG] ASP 1.0.1.10 - Randomly changing Curves histogram

[thufor]

1. Select RAW image (doesn't seem to happen with JPGs).
2. Enable/Disable/Enable/Disable/Enable/Disable... Curves, making sure that the curves are flat as they come with standard installation of ASP.

Result: Histogram on Curves panel changes randomly with each enable/disable click...

[dFlyer]

I can't reproduce what your saying here. My raw format is Sony A700. What raw format are you working with?

[thufor]

The changes are mostly visible on the Curves panel histogram, not the main histogram, although sometimes happen there as well. The changes are also not very dramatic, unless there are clipped shadows -- then the shadow clipping jumps up and down rather significantly.

CR2, Canon EOS 50D.

Code: Select all

Application vers.: 1.0.1.10
Product Name: AfterShot Pro Registered
Built on:     Sun Apr 1 2012
Platform:     Linux
Language:     en
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SIMD Version: SSE2
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Issue:        Fedora release 16 (Verne)
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[afx]

Result: Histogram on Curves panel changes randomly with each enable/disable click...

I can reproduce this with NEFs.
No visual impact on the image it seems but the histogram changes....

Time for the monkey.

cheers
afx

[Tadjio]

1. Select RAW image.
2. Enable/Disable/Enable/Disable/Enable/Disable... Curves, making sure that the curves are flat as they come with standard installation of ASP.
Result: Histogram on Curves panel changes randomly with each enable/disable click...

Please can you explain a little more what you are doing and what is happening - perhaps with screen shots?
What do you mean when you say "making sure that the curves are flat"? Does it only happen with some images?

I have had two similr problems which I have reported, one now seems to be fixed but not the other more complicated one.

Prior to version 1.0.1.9 I found that I could reproduce something like you by toggling within History i.e. Initial Settings plus Curves Adjustment, back to Initial Settings and again forward to Curves Adjustment was losing the Curves change completely.

The second issue is to do with toggling on and off Lens Correction, which still results in random Histogram results with version 1.0.1.10

[afx]

Please can you explain a little more what you are doing and what is happening - perhaps with screen shots?
What do you mean when you say "making sure that the curves are flat"? Does it only happen with some images?

Naked image (I tried it on a D700 NEF), no adjustments at all. Only toggle curves on/off -> Histogram in curves tool changes.

cheers
afx

[Tadjio]

Naked image (I tried it on a D700 NEF), no adjustments at all. Only toggle curves on/off -> Histogram in curves tool changes.

I tried that on a Canon 500D .CR2 file under Windows and nothing changes...

[rlebleu]

Naked image (I tried it on a D700 NEF), no adjustments at all. Only toggle curves on/off -> Histogram in curves tool changes.

I tried that on a Canon 500D .CR2 file under Windows and nothing changes...

I tried that on a Pentax K5 DNG file under OSX and nothing changes in the histogram, but the preview images seems to move ever so slightly... Might just be a screen refresh...

[maggus]

hi,

just tried on EOS 60D RAW ... no issue seen in histogram.

cheers
Markus

[kaymann]

I get zero change as well. I get a little disk activity at first but then it quiets down through all the rest of the D/E's

[gregglee]

1. Select RAW image (doesn't seem to happen with JPGs).
2. Enable/Disable/Enable/Disable/Enable/Disable... Curves, making sure that the curves are flat as they come with standard installation of ASP.

Result: Histogram on Curves panel changes randomly with each enable/disable click...

I assume you mean checking and unchecking the "apply" box in curves. I can't reproduce anything so dramatic, but on/off does cause cllipped highlights to disappear and reappear on the histogram.

Which I discovered is probably a separate error. ON some images clipped highlights don't indicate (no tall spike at right edge), even when the curve is obviously way above zero at the right. I found that the tall spike is actually there, but is is hidden just outside the histogram window. If I pull down on the upper left slider, the hidden edge of the histogram comes into view. Teh width of the histogram changes slightly as I do on/off cycles.

I wonder if you are seeing a similar effect of the histogram width varying compared to the histogram window. (All of this is in the curves histogram.)
For what it's worth I have tools floating on second monitor and widened from default width.

[binoyte]

I can reproduce this with NEFs. No visual impact on the image it seems but the histogram changes....

Time for the monkey.

cheers
afx

Me too with 5D mkiv *.cr2

[nyukuri]

only slight changes with Olympus ORF;
no visible changes wit Nikon NRW though...