Red contrast stitching not showing up in jpegs from iphone 11

[Toby5E1F]

Hello, I am taking pictures of automotive leather seat covers with an iphone 11 pro max. I sell them, so they are just laid out on a whiteboard background. I am having issues with black ones that have red contrast stitching. The red gets washed out by the time I email the photos to myself (I am saving them in jpeg setting on the iphone), save them to a folder, then open in PS. I know how to enhance the red when it is there, but sometimes it is so washed out, I have to zoom in with the pencil tool, and color each individual thread. Maybe this is more of an iphone or photography question? I have thought about getting an actual digital camera for the task, but idk... will that matter? Is it just my lighting? Thank you

[Nancy OShea]

I have thought about getting an actual digital camera... 

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A resounding YES to that! 

Latest generation iPhones and iPads have 12 megapixels cameras which is OK for social media posts.  But that's not what you're doing is it?

A good entry level DSLR will give you much greater detail and a lot more pixel data to work with.  Good lighting is essential too.

https://www.techradar.com/news/best-entry-level-dslr-camera

https://photographylife.com/best-entry-level-dslrs

[Norman Sanders]

I strongly endorse @Nancy OShea's advice. In the interim and as a salvage technique, I suggest you post one of the troublesome black/red files. You may be able to create a mask from Lab Color's  a  channel and use that  to beef up the reds and avoid stitch-by-stitch methods. It would be helpful if you post the image in its original size.  

[michelew83603738]

Maybe try Lightroom on your iPhone and enhance the image before you bring it over to Photoshop first. But yes, there is no substitute for a digital camera!

[Toby5E1F]

I appreciate all the advice. Just to update. I did purchase a dslr. I actually ended up with 2. A Nikon D3500 and D5300. Both with 18-55 kit lenses. Was watching/bidding on both and ended up with both. I sell a lot on ebay, so I will just sell one back on there. But anyway, will keep you posted once I get them and do some tests. Thanks again.

[Toby5E1F]

An update. You guys were right! It is like night and day. Pics are perfect now. Much easier to process and colors are excellent. Stitching colors show perfect. I wish I had done this thousands of pics ago lol!