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View Code? Open in Web Editor NEWA pure Erlang library for creating PNG images. It can currently create 8 and 16 bit RGB, RGB with alpha, indexed, grayscale and grayscale with alpha images.
License: Other
A pure Erlang library for creating PNG images. It can currently create 8 and 16 bit RGB, RGB with alpha, indexed, grayscale and grayscale with alpha images.
License: Other
How to write letters and numbers to png image IoData
I need to implement a picture captch-code function, whether there is a function that can make the alphanumeric distortion, or add some horizontal lines or dots background noise function
Hi,
I am getting an error with png package installation in R HPC. could you please help how to resolve this.
> BiocManager::install("png",lib="/mnt/scratch2/users/3052771/R/lib")
Bioconductor version 3.14 (BiocManager 1.30.16), R 4.1.3 (2022-03-10)
Installing package(s) 'png'
trying URL 'https://cloud.r-project.org/src/contrib/png_0.1-7.tar.gz'
Content type 'application/x-gzip' length 24990 bytes (24 KB)
==================================================
downloaded 24 KB
* installing *source* package ‘png’ ...
** package ‘png’ successfully unpacked and MD5 sums checked
** using staged installation
** libs
/opt/gridware/depots/54e7fb3c/el7/pkg/compilers/gcc/9.3.0/bin/gcc -I"/opt/gridware/depots/54e7fb3c/el7/pkg/apps/R/4.1.3/gcc-9.3.0+lapack-3.9.0+blas-3.8.0/lib64/R/include" -DNDEBUG -I/opt/gridware/depots/54e7fb3c/el7/pkg/compilers/gcc/9.3.0/include `libpng-config --cflags` -fpic -g -O2 -c read.c -o read.o
Package libpng was not found in the pkg-config search path.
Perhaps you should add the directory containing `libpng.pc'
to the PKG_CONFIG_PATH environment variable
No package 'libpng' found
Package libpng was not found in the pkg-config search path.
Perhaps you should add the directory containing `libpng.pc'
to the PKG_CONFIG_PATH environment variable
No package 'libpng' found
Package libpng was not found in the pkg-config search path.
Perhaps you should add the directory containing `libpng.pc'
to the PKG_CONFIG_PATH environment variable
No package 'libpng' found
Package libpng was not found in the pkg-config search path.
Perhaps you should add the directory containing `libpng.pc'
to the PKG_CONFIG_PATH environment variable
No package 'libpng' found
Package libpng was not found in the pkg-config search path.
Perhaps you should add the directory containing `libpng.pc'
to the PKG_CONFIG_PATH environment variable
No package 'libpng' found
Many thanks,
nabiyogesh
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