Bug: png compression in insight displays poorly

[jamoore]

• default compression set to medium
• import a png (xkcd.png)
• click on "View image"
• image opens with medium compression but fairly distorted
• change to compression: none
• change back to medium
• image looks fine.

[jburel]

Could you give me more info about your machine?
I start with compression medium and the image is displayed correctly.

[jmoore]

The compression was taking place on gretzky under root/system. (Images are still there if you want to try with them).

What's your initial compression setting set to?

[jburel]

initial compression was medium.

[jburel]

The problem happens with the openGL flag on and it does not happen all the time.

[jmoore]

I don't think opengl was on:

OMERO.clients-4.3.3-DEV-ice33.mac $ grep -ri opengl .
./config/imviewer.xml:   * Information indicating to use or not openGL. 
./config/imviewer.xml:    <entry name="/library/opengl" type="boolean">false</entry>

[jburel]

The problem happened from time to time. We will have to review the way the Buffered Image is generated.

[jburel]

see b0f368c565aa5743b59849d5b20b5093d6b530fe
I have modified the way images are painted. I have not seen the problem. Closing, we can re-open if we need.

[saloynton]

Tested working as expected using build OMERO-merge-green/113 on Gretzky

• JM/Josh Can I confirm the default compression setting used to be on the login screen as I was not able to set this for the test?

[jburel]

on login screen, select either High or Low.