Ivan Masár created DS-1259:
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Summary: use better image downscaling method in filter-media
Key: DS-1259
URL: https://jira.duraspace.org/browse/DS-1259
Project: DSpace
Issue Type: Improvement
Components: DSpace API
Reporter: Ivan Masár
Fix For: 4.0
Users are unsatisfied with current quality of images downscaled by
filter-media. This leads to using workarounds like creating higher resolution
thumbnails and letting the user's browser downscale the image, which is
bandwidth-inefficient. The right solution would be to find a better downscaling
method.
One proposed option would be to use the Apache-licensed, Maven-dwelling,
GitHub-using pure-Java Imgscalr library:
http://www.thebuzzmedia.com/software/imgscalr-java-image-scaling-library/
The current code that needs to be changed is here:
https://github.com/DSpace/DSpace/blob/master/dspace-api/src/main/java/org/dspace/app/mediafilter/JPEGFilter.java#L136
and in BrandedPreviewJPEGFilter.java
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