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Questions - libpng

How to install libpng-dev on Mac

I am trying to install the reticulate package on my Mac and it depends on the png package, which in turn depends on libpng. I installed libpng with brew but the png package fails due to a missing libp...
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Hahnemann

r

macos

png

libpng

reticulate

Votes: 0

Answers: 1

Latest Answer

Processes not started from a shell may not inherit environment variables from that shell. Start R in Terminal to make sure that your R process inherits PATH from the Terminal shell where you have run ...
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Mikael Jagan

libpng warning: iCCP: known incorrect sRGB profile in .NET Core

We have .NET Core application which is hosted under Linux based Docker container. System.Drawing library wasn't working here so we needed to installed libpng with command apt-get install -y --no-insta...
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Jeeten Parmar

linux

docker

asp.net-core

rgb

libpng

Votes: 0

Answers: 2

Latest Answer

Libpng-1.6 onwards is stricter in checking ICC profiles than previous versions. This warning is printed every time a broken png is found. This warning can be ignored and fixes will include: 1.Downgrad...
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Tupac

Image processing with CUDA and libpng

I've been trying to proccess an image (i.e applying a black and white filter) using CUDA and the libpng library. However, I'm not sure how to pass the image data to the device. As far as I understand,...
test-img

Julian Ricardo Beltran Lizaraz

c

image-processing

cuda

libpng

Votes: 0

Answers: 1

Latest Answer

I'm quite sure that this line causes the problems: cudaMemcpy(d_row_pointers[y], &row_pointers[y], png_get_rowbytes(png_ptr,info_ptr), cudaMemcpyHostToDevice); You can't access the data at d...
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Tomasz Kalisiak

libpng error: Read Error / Why can't this image be processed by OpenCV?

Why can't this specific test.png image be processed by OpenCV? Note: I posted a workaround, but I am still interested in what the actual cause of the error is. import cv2 cv2.imread('test.png') resul...
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Semnodime

python

opencv

runtime-error

png

libpng

Votes: 0

Answers: 1

Latest Answer

I noticed that version of libpng is 15.13.0 according to the file name of lib/python3.8/site-packages/opencv_python.libs/libpng15-ce838cd1.so.15.13.0 Apparently, it's a bug in an older version of libp...
test-img

Semnodime

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