libpng

I installed the FlapPyBird repo from https://github.com/sourabhv/FlapPyBird . I have libpng installed but when i try to run the program with python flappy.py i get Failed loading libpng.dylib: dlopen(libpng.dylib, 2): image not found Any ideas about whats wrong? Thanks Maybe you must install libpng ? You can do it with homebrew: brew install libpng Use python3 interpreter and it will work Try: brew unlink libpng && brew link libpng With me it was some problems with the linking. I had the same issue. Installing the following with homebrew fixed it: brew install sdl sdl_image sdl_mixer sdl_ttf

I have added libpng to my application. If I build for simulator, everything is OK. When I build application for device, I got linker error: Undefined symbols for architecture armv7: "_png_init_filter_functions_neon", referenced from: _png_read_filter_row in libpng-arm7-release.a(pngrutil.o) I have build libpng manually from source, same way for simulator and device (only with changed target of compilation). I have tried to find this problem, but noone seems to post anything about this problem. I "solved" this by replacing lines 117-121 in libpng 's pngpriv.h : # ifdef __ARM_NEON__ # define PNG

I'd like to achieve a maximum amount of compression when saving to a lossless PNG using ImageMagick. I'm doing batch conversion of many PSDs. I tried a few things, but it looks to me like the resulting PNG image is not as sharp as original image, although my wife cannot see it. These are current arguments I'm playing with: convert -depth 24 -define png:compression-filter=1 \ -define png:compression-level=9 -define png:compression-strategy=2 According to: http://www.imagemagick.org/script/command-line-options.php#define And http://www.w3.org/TR/PNG-Filters.html That means: compression filter is

I'm working on a project that uses OpenCV and Tesseract. Both libraries are based on libpng, libtiff, libjpeg, etc.. to load/save image files. But Tesseract (based on Leptonica) uses older versions of these libraries which have incompatible parameters. So I cannot use the same image libraries for both: OpenCV an Tesseract. So if I compile my project dynamically, I will have to deliver a bunch of DLLs with my project. And if I compile statically I produce a huge output file blown up by several megabytes. This is UGLY. I don't want that. Another problem is that nearly all open source projects -

I am trying to write some data to a PNG file using C++ with Visual Studio Express 2013 on Windows 7 64-bit. I understand that to do this, I need to use an external library, but here is where I'm having some difficulty. I tried using LodePNG - it looked simple, lightweight, and easy to use. The problem is, it was TOO simple, and seems to require data in a certain pixel format that doesn't match what I have. I could modify my data to make it compatible with LodePNG, but I'd much rather use a library such as libpng with a bit more flexibility. However, I don't understand the first thing about

I was trying to use ipython notebook . I installed all the dependency libraries. However, I cannot use either the "--pylab=inline" option when launching ipython or "savefig" function in the Ipython console. When I tried to do either of them, an error message was returned "RuntimeError: Could not create write struct" resulting from execution of matplotlib. Also, a warning from the notebookApp prompt said "libpng warning: Application built with libpng-1.2.41 but running with 1.5.13". However, I installed the newest libpng(1.5.13), uninstalled matplotlib with pip uninstall and reinstalled

LNMP环境搭建 　Linux+nginx+mysql+php/perl/python 　一、安装 gcc(编译) gcc-c++(用于新版本的mysql) make cmake libtool（工具） ncurses-devel 　二、安装nginx 　三、安装Mysql数据库 　　1、编译安装Mysql 　　　tar zxf /usr/src/mysql- 　　　cd mysql- 　　　cmake . -DCMAKE_INSTALL_PREFIX=/usr/local/mysql(指定路径) 配置环境，功能相当于./configure 　　　make && make install 编译安装 　　2.配置mysql 　　　cp support-files/my-default.cnf /etc/my.cnf 生成mysql的主配置文件，命名为/etc/my.cnf 　　　cd /usr/local/mysql 跳转到mysql默认安装的目录下 　　　ll 属主属组都是root 　　　useradd -s /sbin/nologin mysql 创建用户mysql,用于登录mysql数据库 　　　chown -R mysql.mysql . 更改当前路径下所有文件为属主.属组为mysql 　　　scripts/mysql_install_db --user=mysql