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26 questions
Tagged
png
×
91
views
1
answer
1
vote
2018-11-06 19:16:03 -0500
phamtp
PNG encoding performance difference between 3.1 and 3.2
png
imencode
74
views
1
answer
-2
votes
2018-10-19 12:10:06 -0500
sturkmen
c++: 4 channel image. How to trim edges with transparency = 0?
opnecv
png
c++
Trim
boundingBox
308
views
1
answer
no
votes
2018-05-08 11:27:01 -0500
berak
imdecode/imwrite PNG file changes from 96 to 72 DPI
png
DPI
imwrite
565
views
1
answer
no
votes
2018-03-23 03:25:09 -0500
berak
imshow can not correctly show a png file
cv2.imshow
png
37
views
no
answers
no
votes
2018-02-26 02:54:37 -0500
ta946
videoCapture() cannot open specific png images (python/windows)
cv2.videocapture
python
png
41
views
no
answers
1
vote
2018-02-09 17:36:51 -0500
cjacquel
Copy of a transparent image
png
transparent
669
views
1
answer
no
votes
2018-01-16 13:20:18 -0500
sturkmen
Can OpenCV write binarized image as 1-bit depth indexed PNG?
png
imwrite
Binarization
176
views
1
answer
no
votes
2018-01-04 05:27:30 -0500
berak
How to get 16bit unsigned int values?
16bit
unsigned
Integer
png
44
views
1
answer
no
votes
2017-06-13 23:15:30 -0500
berak
How opencv write png_text_info header
png
131
views
1
answer
no
votes
2017-01-30 22:01:07 -0500
berak
Does OpenCV suppport animated png?
imwrite
png
animation
122
views
no
answers
no
votes
2016-11-03 10:39:14 -0500
fabrizio_m
Subtract operation creates result with noise
opencv
3.0.0
ios
png
matchTemplate
subtract
1k
views
1
answer
-1
votes
2016-10-03 00:49:56 -0500
berak
keeping the alpha channel in transparent image mat
alpha
alpha-blending
png
mask
background
overlay
74
views
no
answers
no
votes
2016-07-19 08:25:53 -0500
Jonny
Can I read the sBit ancillary chunk from a png file?
png
sBit
Significiant
bit
1k
views
1
answer
no
votes
2016-05-20 07:14:12 -0500
Photonik
save png with imwrite() - read access violation
ffmpeg
imwrite
png
458
views
no
answers
no
votes
2016-04-06 07:15:29 -0500
AVB
PNG image with alpha channel
opencv
alphachannels
png
videocapture
1k
views
1
answer
no
votes
2015-10-21 19:33:05 -0500
xzp777
libpng issues ?
libpng
png
18k
views
1
answer
4
votes
2015-10-13 21:10:43 -0500
sturkmen
How to overlay an PNG image with alpha channel to another PNG?
png
overlay
alpha
Blend
Noteworthy_Content
165
views
no
answers
no
votes
2015-09-25 00:30:43 -0500
realkill
PNG transparent channel lost after perspective transformation. [closed]
png
perspective
140
views
no
answers
no
votes
2015-03-04 06:48:59 -0500
HarryFu
PNG issue using Debian Linux on ARM (Beaglebone Black)
png
beagleboneblack
arm
imread
235
views
no
answers
no
votes
2015-02-23 14:09:17 -0500
mikhail
decode avi with png codec [MPNG] problem
python
Video
png
decoder
206
views
no
answers
no
votes
2013-09-23 09:34:48 -0500
liborw
OpenCV + Matlab ? ROS: Reading PNG
png
8k
views
no
answers
-1
votes
2013-07-30 09:42:02 -0500
droidCV
Overlay png image over jpg using openv Java API
#android#opencv
#opencv#java
#opencv4android
png
overlay
4k
views
3
answers
1
vote
2013-05-02 02:35:53 -0500
berak
png compression
png
compression
java
imwrite
697
views
1
answer
no
votes
2013-02-26 07:57:17 -0500
berak
png Saving with a video camera
imwrite
videocapture
camera
png
143
views
1
answer
no
votes
2013-01-23 01:52:47 -0500
Alexander Smorkalov
data for running opencv_perf_calib3d
perf
test
png
11k
views
2
answers
4
votes
2012-12-03 14:27:52 -0500
mjepson
Problem Reading PNG with Transparency layer
imread
libpng
png
alpha
transparency
mask
Links
Official site
GitHub
Wiki
Documentation
Contributors
Tags
png
×26
imwrite
×6
alpha
×3
overlay
×3
imread
×2
libpng
×2
mask
×2
opencv
×2
python
×2
videocapture
×2
16bit
×1
3.0.0
×1
alpha-blending
×1
alphachannels
×1
#android#opencv
×1
animation
×1
arm
×1
background
×1
beagleboneblack
×1
Binarization
×1
bit
×1
Blend
×1
boundingBox
×1
c++
×1
camera
×1
compression
×1
cv2.imshow
×1
cv2.videocapture
×1
decoder
×1
DPI
×1
ffmpeg
×1
imencode
×1
Integer
×1
ios
×1
java
×1
matchTemplate
×1
Noteworthy_Content
×1
#opencv4android
×1
#opencv#java
×1
opnecv
×1
perf
×1
perspective
×1
sBit
×1
Significiant
×1
subtract
×1
test
×1
transparency
×1
transparent
×1
Trim
×1
unsigned
×1
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