[英]How to get pixel value of a grayscale image with 16 bits depth using libpng library?
[英]emacs 24.4.1 image support - can't find libpng16.dll binary
我正在使用Windows 8 64位,試圖獲得emacs的圖像支持。 這是2014年10月24日對LEG570的Ch Ca GNU Emacs 24.4.1(i686-pc-mingw32)的結果
這是動態庫警報器:
((xpm "libxpm.dll" "xpm4.dll" "libXpm-nox4.dll") (png "libpng16.dll" "libpng16-16.dll") (tiff "libtiff-5.dll" "libtiff3.dll" "libtiff.dll") (jpeg "libjpeg-9.dll") (gif "libgif-7.dll") (svg "librsvg-2-2.dll") (gdk-pixbuf "libgdk_pixbuf-2.0-0.dll") (glib "libglib-2.0-0.dll") (gobject "libgobject-2.0-0.dll") (gnutls "libgnutls-28.dll" "libgnutls-26.dll") (libxml2 "libxml2-2.dll" "libxml2.dll") (zlib "zlib1.dll" "libz-1.dll"))
這是emacs24 / bin的內容:
c:/Users/charles/emacs24/bin:
total used in directory 26417 available 425207560
drwxrwxrwx 1 charles None 4096 01-12 16:58 .
drwxrwxrwx 1 charles None 0 01-09 22:03 ..
-rwxrwxrwx 1 charles None 590441 01-09 22:01 addpm.exe
-rwxrwxrwx 1 charles None 978880 01-09 22:01 ctags.exe
-rwxrwxrwx 1 charles None 730198 01-09 22:01 ebrowse.exe
-rwxrwxrwx 1 charles None 9220110 01-09 22:01 emacs-24.4.exe
-rwxrwxrwx 1 charles None 9220110 01-09 22:01 emacs.exe
-rwxrwxrwx 1 charles None 1021304 01-09 22:01 emacsclient.exe
-rwxrwxrwx 1 charles None 667492 01-09 22:01 emacsclientw.exe
-rwxrwxrwx 1 charles None 975457 01-09 22:01 etags.exe
-rw-rw-rw- 1 charles None 31744 01-12 16:58 giflib4.dll
-rw-rw-rw- 1 charles None 7168 01-09 22:01 grep-changelog
-rw-rw-rw- 1 charles None 153966 01-12 16:58 jpeg62.dll
-rw-rw-rw- 1 charles None 532345 01-09 22:01 libXpm.dll
-rw-rw-rw- 1 charles None 1243248 01-12 16:58 libglib-2.0-0.dll
-rw-rw-rw- 1 charles None 341425 01-12 16:58 libgobject-2.0-0.dll
-rw-rw-rw- 1 charles None 230529 01-12 16:58 libpng14-14.dll
-rw-rw-rw- 1 charles None 77900 01-12 16:58 librle3.dll
-rw-rw-rw- 1 charles None 375296 01-12 16:58 libtiff3.dll
-rw-rw-rw- 1 charles None 31232 01-12 16:58 libungif4.dll
-rwxrwxrwx 1 charles None 494367 01-09 22:01 runemacs.exe
-rw-rw-rw- 1 charles None 52224 01-12 16:58 xpm4.dll
-rw-rw-rw- 1 charles None 70656 01-12 16:58 zlib1.dll
我的問題-我似乎找不到libpng16.dll或libpng16-16.dll的二進制文件。 那里有很多源代碼,但沒有二進制文件。 我在/www.gtk.org/download/win32.php中找到了32位和64位版本的libpng15-15.dll-不是我知道兩者中的哪一個可以工作。 我也找不到libpng15.dll-我使用的是64位Windows8計算機,但我認為我使用的emacs預編譯版本是32位。...有人可以幫忙嗎?
從http://sourceforge.net/projects/ezwinports/files/下載libpng-1.6.12-w32-bin.zip,然后將libpng16.dll和zlib1.dll復制到emacs24 / bin(需要zlib1.dll)
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