[Paraview] screenshots in png format are big

Burlen Loring bloring at lbl.gov
Tue Nov 26 11:52:15 EST 2013


it could be a bug if you saw a big increase in file size of saved png 
images between versions when rendering exactly the same scene. It'd be 
helpful if you could create a bug report, with steps to reproduce, and 
two png images that are different size.

On 11/25/2013 05:24 PM, Gena Bug wrote:
> On 11/26/2013 05:03 AM, Burlen Loring wrote:
>> that's generally expected because png's compression is loss-less while
>> jpg's lossy. png uses zlib which does have a few options for adjusting
>> compression vs decode/encode speed but looks like they're not exposed in
>> PV.
> So is this a bug? For me it is because in previous version of PV 
> (4.0.1) I'm getting much smaller png file (almost 3 times smaller than 
> jpg).
>
>>
>> On 11/25/2013 02:42 PM, Gena Bug wrote:
>>> Hi!
>>>
>>> I've noticed that screenshot in png format has too big size compared
>>> to, for example, jpg. Tried to play with output image quality -- size
>>> didn't changed. For jpg all works as expected...
>>>
>>>
>>> P.S. ParaView 4.1.0-RC1 64-bit downloaded from the site, OS: Debian
>>> testing amd64
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>>
>>



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