https://bugs.documentfoundation.org/show_bug.cgi?id=163737
Bug ID: 163737
Summary: The image compression dialog box : new field "modify
the old resolution only if the new one is less than"
Product: LibreOffice
Version: 7.2.1.2 release
Hardware: All
OS: All
Status: UNCONFIRMED
Severity: enhancement
Priority: medium
Component: UI
Assignee: [email protected]
Reporter: [email protected]
Interpolation algorithms (None, Bilinear, Bicubic, Lanczos) require a minimum
set of pixels in the vicinity of each pixel to be interpolated without
perceptible loss of quality.
I propose that this dialog get a new field like "modify the old resolution only
if the new one is less than" : [r].
The default "r" ratio could be 50%.
If you set 1000% for the "r" ratio with a 500 dpi old resolution and 600 dpi
new resolution, it will transform the image with a 600 dpi resolution.
If you set 50% for the "r" ratio and a new resolution to 200 dpi :
A. a 500 dpi old resolution will be changed into 200 dpi (because 200/500 <
50%)
B. a 300 dpi old resolution will be unchanged (because 200/300 > 50%)
In the B case, it prevents a loss of quality (because of interpolation
algorithms).
In the B case, you can still use this dialog box in order to convert an image
from one format to an other (but the resolution will remain the same).
--
You are receiving this mail because:
You are the assignee for the bug.
