Hi Andrea. The program is great, but i'm finding it a little slow. I have about 500 JPGs, each 3000px wide, for printing 30 inches wide at 250dpi, a mosaic 120 tiles wide and 63 pixels per tile, the rendering takes about 3 hours on an Athlon 3500+ with 2GB of RAM. Do you have any suggestions to increase performance? I could make the tiles smaller but I want to retain image quality for such a big print.

Another thing - a more accurate "time left" indicator would be great, and if you could spare a couple of cycles to update the UI every few seconds so the user knows when it'll be done, that'd be very handy

Thanks

Hello "commando",

If every tile is only 63 pixels width then it's useless to have 500 JPGs of 3000 pixes width. Reduce them to like 100 pixels width for superfast performance and without loosing any quality. They will be reduced to 63 pixels in any case.

Normally I suggest a width of 300 pixels for every tile in your collection, and a somewhat bigger size for every tile (not only 63 pixels, but like 150 pixels).

In such situation the mosaic will be ready in like 2 minutes.

Thanks Andrea, it is a heck of a lot faster with smaller tiles, and the quality is still good.

Cheers

C

Yes, the quality doesnt change because the program in any case have to resize the photo to 63 pixels width (the size of your tiles).

Andrea,

Using small thumbnails (e.g., 300px wide) for the tiles is extremely important but I don't think it is mentioned in the tutorial. Small tiles cut my rendering times from hours to minutes. I used IrfanView to make 300px thumbnails of a large number of photos.

I think this is important enough to be added to the tutorial.
Or have a Sticky in the forum describing the importance of having small tiles and indicating that the quality of the resulting mosaic will not suffer.

Thanks for a fun program!

--Larry

Hello Larry,

Thank you for your suggestions. I will add this soon in the program!

byee
Andrea

I use tiles about 250 pixels wide--still takes me hours. Might be because I have a large collection, though. If I used giant pictures for the tiles it probably wouldn't even be able to load it.

With big images in the tile collection it just takes more time. But it will complete soon or later. In a future release I will improve this.

I started the programme up to create a new collection last night. 24 hours in, it is still saying "Building File List..." at the bottom of the window and it is unresponsive to anything I click. I've left it alone for now, hoping it will begin the compilation soon. Is 24 hours a long time to wait for it to build the file list? I have a new Dell XPS 420 and gave it a fresh restart before running Andreamosaic. I am also running no other programmes besides Andreamosaic--I'm typing this from my old computer.

No.... Building File List should be fast.... very fast... after that the slow process of loading all the images will start!... that's strange what happen's to you....

write me an email for more info! we can make some test's for to find the problem and fix it.