There are 2 components, the background and the slides. I didn’t touch most of the slides, because I realized they would need more than a simple upscale. The ones I did upscale I used waifu2x for. For everything else I used waifu2x, GIMP and Paint.NET.
waifu2x was an okay upscaler back in 2018. Today I would use StableSR or SUPIR.
There are 2 components, the background and the slides. I didn’t touch most of the slides, because I realized they would need more than a simple upscale. The ones I did upscale I used waifu2x for. For everything else I used waifu2x, GIMP and Paint.NET.
waifu2x was an okay upscaler back in 2018. Today I would use StableSR or SUPIR.