This utility takes listed illustrations from a larger collection as created by Nandaka/PixivUtil2 and upscales each of them using nihui/waifu2x-ncnn-vulkan until it is of at least a specified size.
First specify the path to the upscaler binary in config.py.
Write a list of desired illustrations. The list should contain lines in the following format:
pid,index
Alternatively, if you have a folder of images with filenames in the same format as the downloader uses, you can run python readlist.py <dir>. The list will be put into stdout.
To start upscaling, run python batchupscale.py <imagesdir> <listfile> <outdir> <size> to retrieve images from <imagedir>, leaving only those listed in <listfile>, putting them in <outdir>, and upscale them until they are each at least of size <size> (in MiB) or when the program has already tried 5 times.
The program is tested only under Windows 10.