Opened 7 years ago

Closed 7 years ago

Last modified 6 years ago

#5685 closed defect (fixed)

Cubic overview doesn't take into account scaling

Reported by: Even Rouault Owned by: warmerdam
Priority: normal Milestone: 2.0.0
Component: GDAL_Raster Version: unspecified
Severity: normal Keywords: cubic overview
Cc: cdestigter, Robert Coup

Description

Currently, using cubic resampling for overview computation doesn't work as expected since we use a fix 4x4 filtering kernel that is only meant for interpolation without changing resolution. When computing overviews, we must take into account 4*nSrcWidth/nDstWidth pixels.

Change History (3)

comment:1 Changed 7 years ago by Even Rouault

Cc: cdestigter Robert Coup added
Milestone: 2.0
Resolution: fixed
Status: newclosed

trunk r27796 "Fix cubic resampling in overview computation to take into account scaling factor (#5685)"

comment:2 Changed 7 years ago by Even Rouault

trunk r27813 "Speed-up cubic overviews (#5685)"

comment:3 Changed 6 years ago by Even Rouault

Milestone: 2.02.0.0

Milestone renamed

Note: See TracTickets for help on using tickets.