Blame the seams in the image on the source, I've never had this happen before when I stitched images together.

MarqFJA87 said in comment #2630457:

Blame the seams in the image on the source, I've never had this happen before when I stitched images together.

I appreciate you stitching it, I was going to do it myself but I was scared of messing up.

MurlaTart said in comment #2631072:

I appreciate you stitching it, I was going to do it myself but I was scared of messing up.

Honestly, all I did was use IrfanView to paste each portion next to each other. Up until now, this has always produced seamless wholes, with the only hiccups being when the images themselves aren't properly divided (e.g. scans of physical pages). This is the first time that what should be a perfectly divided image has thin but still visible seams in it; I suspect it's an artifact of whatever method the artist used to segment the original image in the first place.