GMERLIN_SSIM(1)

💖 GMERLIN_SSIM 💖

okay bestie, welcome to gmerlin_ssim(1), the little Gmerlin tool that looks at two pics and is like "yeah these are kinda the same, here's the receipts" 🫶

✨ NAME ✨

gmerlin_ssim — compare two images, that's the whole job, no notes 💅

🌸 SYNOPSIS 🌸

gmerlin_ssim <image1> <image2> [<output_image>]

🦋 DESCRIPTION 🦋

so here's the tea: gmerlin_ssim runs the structural similarity math between <image1> and <image2>, and then it drops the resulting image into <output_image>. literally it computes the SSIM and hands you a picture of it. iconic behaviour tbh ✨

heads up though: your input images should be of the same dimension and format. don't be out here feeding it a 4K JPEG and a postage-stamp PNG and expecting magic, the vibes have to match first 🎀

the SSIM algorithm itself is borrowed from the paper "Image Quality Assessment: From Error Visibility to Structural Similarity" by Z. Want et. al., which was published in IEEE Transactions on image processing, VOL. 13, NO. 4, APRIL 2004. academic slay 🔥 the author's homepage lives here:

http://www.ece.uwaterloo.ca/~z70wang/research/ssim/

and yes, gmerlin_ssim is part of the Gmerlin suite of media applications — one of the family, lowkey the sibling that just measures vibes 🧚

👑 sign-off 👑

that's the whole page fr fr — brought to you by Gmerlin, dated January 2011. she's been holding it down since forever and she ate 💜🌸✨