Originally Posted by NiLuJe
@Leir: How did you switch to the next book (Home, then collection, then book, or back, collection, book?).
Also, could you post the file the ;dm
command (in the searchbar, on the home page) produce (in the documents folder, IIRC)?
@geekmaster: While it's a nice info, keep in mind that I'm using ImageMagick, and that it's done on device, and it already takes ~10s to process everything (colorspace switch, gamma correct, Lanczos/Mitchell rescale & PNG encoding)
It could be made a LOT faster by pipelining all the operations to be performed at once, but that requires a lot of work recoding it. Also, if a pleasant (but lossy) image is good enough, there are shortcuts that can be taken in the algorithms too. Doing "minimal-gradient super-res" could actually be a lot FASTER than Lanczos/Mitchell, for example. But you have to write your own code if you want it fast with low overhead...
Of course, I would cache the upscaled images so you only need to burn that "10 seconds" once for each book, and I would try to preprocess the images in the background ahead of time if possible, so you would not even notice it...
EDIT: It all boils down to where you want to invest your time, and just how good is "good enough" (both in execution speed and upscaled image quality).