My friend Wert,
In looking at your original image, I do not agree. I see no red over black.
Moving on to your manipulated image; we seem to be wanting to make z axis decisions based upon 2D images. This is a stretch and whether we are talking about cancelations or ink applied to a stamp manipulating a 2d image is not going to give you much help in understanding 'layers' in a z axis direction. Depth (z axis) can be difficult to determine even in a normal image. For example consider this image clouds and the moon. The dark cloud on the left appears to be passing behind the moon! (Obviously this cannot be true, the moon is 238,900 miles from the earth.)

Here I have inversed the color palette and it makes a stronger case for saying that the cloud has indeed passed behind the moon.

Note how the algorithm does not show any cloud in front of the moon. So as you can see 2D images can easily fool our eyes when it comes to determining depth.

About 12 years ago we had a $18,000 computer
graphics card and
3d monitor. This setup allowed us to add layers to images and then the layers would be displayed on the monitor with depth (no special glasses needed!). While a neat effect the depth completely depended upon how we added the layers; manipulating the layers change how the depth was perceived.
We could do the same thing with the image of your stamp even without the special equipment. We could split the color channels in your stamp image into layers and then 'stack' them back in any order we want. Software and computers are fun but we have to be careful in how we apply them.
Respectfully yours,
don