Mac Photos App Custom Color Hue Selector Not Working

BernieMac27 wrote:

Beginning a few months ago

So what happened a few months ago? Did you upgrade to Sequoia?

I have come to realize that the custom color selector tool is actually vertically inverted. So where I am clicking on the image, it is taking the color as if I was clicking on the opposite vertical side of that image. (In the attached photo I am hovering over the green color to select but it is registering it as the purple from the opposite side of the image)

I can reproduce this bug. This is a common programming error. Internally, images are often flipped. I don't know why Apple does this, but they do - everywhere. It's infuriating.

Back in the ancient days of the Mac, they defined the origin of the screen to be the lower-left corner, so it would line up with the positive x and y axes of a graph. But that's not how computer images actually work. They start at the upper left corner.

So then, maybe to reduce the CPU usage or something, they switched it on iOS. Then iOS turned out to be really popular, so Apple actually dumped the Mac entirely. You didn't know that? Yeah, it's gone. Since the iPhone took off, Apple's been steadily replacing bits and pieces of the Mac operating system with parts of the iPhone operating system. You can tell when they do this when exactly this kind of bug shows up.

This has made this tool unusable for me.

So use a different tool. There is a reason why Apple bought Pixelmator.

You can file a bug report if you want. They might fix it. They fixed a horrible PDF bug recently. I was surprised they fix that so soon. But this bug is more obscure. Might not get fixed until the fall.

BernieMac27 wrote:

2022 M1 MacBook Pro:

On my Photos App editor under "Selective Color" the custom hue dropper selector is not working. I would commonly use this to select a specific color in my photo and edit the saturation/hue. Beginning a few months ago, when I hover over a specific color in the image to select, the color is not being properly selected where I put the cursor/dropper on the photo. It is taking a color from a different part of the image.

I have come to realize that the custom color selector tool is actually vertically inverted. So where I am clicking on the image, it is taking the color as if I was clicking on the opposite vertical side of that image. (In the attached photo I am hovering over the green color to select but it is registering it as the purple from the opposite side of the image)

https://discussions.apple.com/content/attachment/7bc8530a-ab14-4376-898e-faf829e4897d

This has made this tool unusable for me. It makes it impossible to find and select specific colors in more complex photos. I have tried restarting the app, computer, and updating to Sequoia did not solve the issue as of Version 15.3. All other built in and third party color selector tools still work on my device, the issue is specifically with the Mac Photos app.

To be proactive you can file a bug report / submit your Apple Feedback direct to the Product Team here:

https://www.apple.com/feedback/photos/

—A SafeBoot https://support.apple.com/en-us/HT201262 will sort many anomalies

Login and test. Reboot as normal and test. Caches get rebuilt automatically.

This test will tell you if third party interference; most extensions etc are not loaded in safe boot mode.

—Test issue in another user (or guest user) account and compare your results

https://support.apple.com/guide/mac-help/set-up-other-users-on-your-mac-mtusr001/mac