* Max Killer <[email protected]> [10-13-13 13:37]: > On 10/13/2013 05:23 PM, Patrick Shanahan wrote: [...] > > But what is the difference in the output image if export is not set to > > "high quality", particularly the printed output? > > > > tks much for explanation. > > first, I don't understand your point with the "printed output".
All are exported the same and intented for web display, but some viewers print a few so there is an option to dl the full-high-resolution image. If the quality of the output is the same regardless of "do high quality resampling during export", and that option slows export, I should not select that option. > The difference is the order, in which the image operations are performed: > If high quality export is off, the the image is resized first, and then > the resized image is used as input for all your selected iops. > If you turn the high quality export on, the full resolution is used as > the input for the iops and the image is scaled down afterwards. This is > the reason why the export takes much longer compared to low res output > if a smaller resolution is used, the pipe has simply to calculate a lot > more pixels. > > But as some iops are "dependend" on the image size, the output has to be > different. > If you export to full resolution, then the high/low resolution option > has no effect, because no scalling takes place. I guess this is the answer I need. I output to max size/resolution and do reductions for display automagically when adding to web albums. So, I should not select "do high q....", iiuc. tks, -- (paka)Patrick Shanahan Plainfield, Indiana, USA @ptilopteri http://en.opensuse.org openSUSE Community Member facebook/ptilopteri http://wahoo.no-ip.org Photo Album: http://wahoo.no-ip.org/gallery2 Registered Linux User #207535 @ http://linuxcounter.net ------------------------------------------------------------------------------ October Webinars: Code for Performance Free Intel webinars can help you accelerate application performance. Explore tips for MPI, OpenMP, advanced profiling, and more. Get the most from the latest Intel processors and coprocessors. See abstracts and register > http://pubads.g.doubleclick.net/gampad/clk?id=60134071&iu=/4140/ostg.clktrk _______________________________________________ Darktable-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/darktable-users
