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PINK?
Apr 30, 2018 06:17:05   #
dieseldave Loc: Davenport,IA
 
I was out taking pictures of courthouses using my new Sony RX19 miv. But when I open them on my pc they have big pink spots - apparently where the sun was reflecting. Ii used both corel psp and affinity but it only seems to occur when I open the raw photo with corel?

corel
corel...
(Download)

Afffinity
Afffinity...
(Download)

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Apr 30, 2018 06:43:04   #
jerryc41 Loc: Catskill Mts of NY
 
Interesting. You have to remember that you don't have an actual picture, just millions of 1s and 0s. The magic of software lets the computer attempt to organize them and make sense of that collection. Keep experimenting and see if Corel turns white areas pink in other raw files. How about raw files from other cameras. This sounds like a big, interesting project.

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Apr 30, 2018 06:52:54   #
Triplets Loc: Reading, MA
 
dieseldave wrote:
I was out taking pictures of courthouses using my new Sony RX19 miv. But when I open them on my pc they have big pink spots - apparently where the sun was reflecting. Ii used both corel psp and affinity but it only seems to occur when I open the raw photo with corel?


It appears to have been cropped out of the one marked "Affinity".

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Apr 30, 2018 07:46:41   #
dieseldave Loc: Davenport,IA
 
Triplets wrote:
It appears to have been cropped out of the one marked "Affinity".


Yes but it was cropped by Affinity. It was a very sunny day and many of the buildings were on the shady side. What sort of filter might reduce the glare? Or am I setting the camera wrong? I have been using it on full auto cause it is supposed to have such a fast focus.

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Apr 30, 2018 08:28:14   #
Linda From Maine Loc: Yakima, Washington
 
The Corel version reminds me of when you set your raw editor to show which areas are over-exposed or under-exposed. But then I'd expect you'd be posting a screenprint, not a converted jpg. What happened to the pink when you adjusted exposure, contrast or "whites" in the raw editing process?

To Triplets: if you download, you will see the roof shingle details within the white. It only looks like a cutout in the thumbnail.

Would you try uploading the raw, please? It won't show a thumbnail just a caption "attached file." Hopefully, the file won't be too large for UHH to accept.

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Apr 30, 2018 12:17:11   #
dieseldave Loc: Davenport,IA
 
Linda From Maine wrote:
The Corel version reminds me of when you set your raw editor to show which areas are over-exposed or under-exposed. But then I'd expect you'd be posting a screenprint, not a converted jpg. What happened to the pink when you adjusted exposure, contrast or "whites" in the raw editing process?

To Triplets: if you download, you will see the roof shingle details within the white. It only looks like a cutout in the thumbnail.

Would you try uploading the raw, please? It won't show a thumbnail just a caption "attached file." Hopefully, the file won't be too large for UHH to accept.
The Corel version reminds me of when you set your ... (show quote)


here u go..

Attached file:
(Download)

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Apr 30, 2018 12:59:51   #
Linda From Maine Loc: Yakima, Washington
 
dieseldave wrote:
here u go..
Thanks, Dave. To repeat my earlier question, What happened to the pink when you adjusted exposure, contrast or "whites" in the raw editing process?

btw, the raw file you uploaded is not the same as you posted in your opening (#909 vs. #910; check the position of the flags) - so we may need to start all over!

I didn't expect to see pink when I opened in the Adobe Camera Raw module of PS Elements, but I wanted to work on the photo to see how much detail could be extracted. Folks with more expertise than I will do better

1. The screenprint shows the changes I made in my raw editor: reduced contrast and highlights, and opened the shadows a little, along with other tweaks.

2. In PS Elements, I did minor levels adjustment, but the biggest improvement was to selectively darken the roof and lighten some shaded parts of the architecture. As you can see from my modest efforts, you have a lot of detail lurking on the brightest part of the roof (and you can also see that I need to fix one area where my darkening slipped onto the edge of sky).

I also practiced my distortion control, which is why your pic is missing the right side

Please do tell us what edits you tried with the raw, and at what point in the process the roof was pink.


(Download)


(Download)


(Download)

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May 1, 2018 10:04:18   #
rfmaude41 Loc: Lancaster, Texas (DFW area)
 
Triplets wrote:
It appears to have been cropped out of the one marked "Affinity".


Only the "upper" spot; the roof still shows the difference (pink vs white).

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May 1, 2018 13:41:37   #
SalvageDiver Loc: Huntington Beach CA
 
dieseldave wrote:
I was out taking pictures of courthouses using my new Sony RX19 miv. But when I open them on my pc they have big pink spots - apparently where the sun was reflecting. Ii used both corel psp and affinity but it only seems to occur when I open the raw photo with corel?


Hello Dave,

First, your uploaded file is not the same as your posted file. If you upload the raw file of your posted image, we can give you a more definitive answer to your issue.

Your uploaded raw file shows a small amount of green channel clipping due to overexposure in the roof. Not enough clipping to visually alter the appearance of the tiles.

However, your posted image is likely even more overexposed in the green channels. If you have a white image and you clip or remove green, the resultant RGB image tends toward magenta. A small amount of green channel clipping would look pink, just as in your posted image. Here is a link to illustrate this:

web_stanford.edu/class/cs101/image-rgb-explorer.html

[replace the underscore with a period to access the link].

Mike

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