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loss of quality of downloaded pictures

Soul Destroyer

Chevereto Member
After upping a few LZ1 covers to play around with and then viewing and redowning from site; the artwork has all been compressed so that when viewing online or the downed version fragments and compression and loss of quality are very obvious.

Example attached:
upLZ_LZ_2014_0001.jpg.1a3f591bc8d2d29a96f89e690d36b4b5.jpg


up is the version uploaded.

bu is the version downloaded which retains the same ration but clearly a loss of quality is exhibited.

buLZ_LZ_2014_0001.jpg.4502b8390f2325a7fd846bb10caa04b8.jpg


I`m I missing a setting????
Any help would be great thanks

Chevereto version 3.7.5 – G\ Library 1.0.29
  • PHP version 5.5.35
  • Server 95.211.162.73 Linux/apache2handler
  • MySQL version 5.5.31
  • MySQL server info Uptime: 55072142 Threads: 2 Questions: 1301415769 Slow queries: 417 Opens: 1014588 Flush tables: 1 Open tables: 400 Queries per second avg: 23.631
  • GD Library Version bundled (2.1.0 compatible) JPEG:1 GIF:1/1 PNG:1 WBMP:1 XBM:1
  • File uploads Enabled
  • Max. upload size 8 MB
  • Max. post size 8 MB
  • Max. execution time 300 seconds
  • Memory limit 128 MB
 
Last edited:
Chevereto doesn't compress uploaded images. To demonstrate it, I've generated a checksum (MD5) for that image:

upload_2016-6-6_11-9-44.png

Which is the same as you can see here http://demo.chevereto.com/i/ljG:

upload_2016-6-6_11-10-18.png

Finally, I downloaded the image (from Chevereto) and the MD5 is the same.

Always test on the demo website first. Most likely you have a second level optimization (CDN and stuff like that).
 
I`m at a loss here mate, Ive never had this problem before and I'm using the same server,
Any pointers in how to fix this
 
There is a bug in the uploader, I just found it. Let me work on it and I will post a hotfix asap.
 
app/lib/chevereto.js

Replace this:
Code:
if(!queue_is_url && f.parsedMeta.mimetype !== "image/gif" && typeof f.formValues !== typeof undefined && f.formValues.width !== f.parsedMeta.width) {

With this:
Code:
if(!queue_is_url && f.parsedMeta.mimetype !== "image/gif" && typeof f.formValues !== typeof undefined && f.formValues.width != f.parsedMeta.width) {
 
Hi! I am having the same trouble since V3.7.5 and even after changing the line mentioned above it's still randomly not working.
Example: If I edit Image infos before, the uploaded image is still blurred. Example:



Also I noticed, that the redirect after upload doesn't work anymore:

ef25271e4e87c09b8426fd4483d97a82.png


Thanks in advance for bugfix Rodolfo. 🙂
 
The patch needs you to wipe your browser cache. It also applies for any kind of server or CDN cache.
 
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