[PD] GEM: displaying Pictures on MIDI Keyboard events, pix_image vs. pix_imageInPlace

hi list,

another probably stupid beginner question: as far as i understood the help patches i should use pix_imageInPlace instead of pix_image because of better performance. i do not get the usage of pix_imageInPlace it does not really work for me, where is the problem? I also get these "is not the power of two" errors all the time, although the pictures are all 400 x 400 pixels, what's the reason? it says quite often in the help files that one should use only .tiff files, but .jpg seems to work as well, what about that? i was comparing the performance of LZW compressed tiffs and uncompressed ones, and had the impression that without compression it runs a bit better. do you agree?

so many questions, one patch:

thanks, max