Someone sent me some very large JPEG pictures, like 15mb each. They look fine in Windows Photo Viewer (Windows 7), but they appear extremely dull and washed out in Irfanview. It's like half of the colors have gone missing, like the saturation has been turned way down.
Worse, when I save them with Irfanview, the color loss remains in the new file no matter what it's viewed with.
I thought maybe the problem was that I was using Irfanview 32-bit, but the problem remains after upgrading to 64. I've also tried changing the color management settings to no effect.
I want to re-encode them using Irfanview's batch function (they're barely encoded at all; that's why the file sizes are so large). That's my main issue, but also, I'd like to know why they look so bad simply when viewing them in Irfanview too. I've never seen this before, and I've been using Irfanview for years.
Update: I've tried opening the pictures in GIMP, and very quickly when it opens, at the bottom it says "Converting from Prophoto to sRGB built-in". The pictures look fine in GIMP.
Update: I've solved this by installing the Irfanview plugin package, then trying color management again. The color management settings say "(plugin)" in them, but apparently if you don't have the plugin installed, it just fails silently and does nothing. I installed the plugin package that contains all plugins, turned on the color management settings again, and now everything is in full color.
The actual option that I think fixed it is the bottom option, the one that says to apply sRGB to pictures without a color profile.