And if you install the latest version of Picasa (3.9) under WINE ( instructions), a problem occurs when bringing all the photos into Picasa. It works as described with Picasa, but it is old. If you install the last version of Picasa made for Linux, it is significantly out-of-date. So the photo files are where F-Spot put them, and, irrespective of how Picasa organises them in its own “virtual” folders, changes made to the photo in Picasa alter the original photo in its F-spot location. This should be manageable given that Picasa can work on existing files, without having to separately import them to a different place on the file system. want any changes to also be the same in F-spot.Some people want to use F-Spot and Picasa together – F-spot to import and tag photos and Picasa to do minor editing ready for printing. ImageMagick crashes on large images Posted in Graphics, Open Source, Programming, Ubuntu F-spot vanished in Ubuntu 15.04 (Vivid) ImageMagick: convert quits after some pages It looks like these changes are all about security concerns with the intention of preventing malicious resource starvation. One other note – settings in policy.xml cannot be loosened through arguments supplied to the convert program via the CLI – they can only be tightened. Hmmm – now I change the disk setting back and I am still able to make the higher-resolution images, even after rebooting. It seems the following was set too low:Īnd it would successfully create high-resolution PNGs even if it took a long time. The reason was the policy.xml settings in /etc/ImageMagick-6/. Interestingly, the problem only occurred on Ubuntu 17.04 and not 16.10. This happened on a range of fast and slow machines and the amount of RAM seemed irrelevant. The second issue was the error message about cache resources exhausted. So the slowdown was because I had shifted from a fast desktop to a (more convenient but slower) laptop. And creating a 1200 dpi image might take 0.5 minutes on an i7 and 18.5 minutes on an i5. What takes 4 seconds on an i7 can take 71 seconds on an i5. Seemingly modest differences in CPU specs can create massive differences in the time required to convert PDFs to PNGs. I finally worked out what was going on by running the same tests on different machines. They wouldn’t handle high resolutions (600dpi seemed to be the limit for the images I was handling) and it took a very long time to complete. Recently, commands like this stopped working properly on my development machine. The sort of command run under the hood was:Ĭonvert -density 1200 -borderColor "#ff0000" -border 1x1 -fuzz 1% -trim "/home/g/projects/sofastats_proj/storage/img_processing/pdf2img_testing/KEEPME/raw_pdf.pdf" "/home/g/projects/sofastats_proj/storage/img_processing/pdf2img_testing/density_1200_fuzz_on_#ff0000.png" My sofastatistics application relies on ImageMagick to convert PDFs to PNGs.
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