I'm having trouble getting pictures supported with PIL - it throws me this: "IOError: decoder jpeg not available" I installed PIL from binary, not realizing I needed libjpeg. I installed libjpeg and freetype2 through fink. I tried to reinstall PIL using instructions from http://timhatch.com/ (bottom of the page) "* Download PIL 1.1....
Hey all, I'm on Ubuntu Intrepid and I'm using jpeglib62 6b-14. I was working on some code, which only gave a black screen with some garbled output at the top when I tried to run it. After a few hours of debugging I got it down to pretty much the JPEG base, so I took the example code, wrote a little piece of code around it and the output...
Hello all, I have JPEG compressed byte stream stored in a variable called "Image" and I want to convert this byte stream to RGB. Eg: unsigned char *Image; My question is: Is there any way to pass "Image" to jpeg_stdio_src() to get the RGB color values? Can anyone tell me how I could use jpeglib library to get RGB from byte stream "I...
I need to do some work with this library and I'm finding the documentation at http://apodeline.free.fr/DOC/libjpeg/libjpeg.html to be deficient (incomplete function signatures, etc). Does anyone know of some other sides or have some example code illustrating common tasks? [Edit] I also found this question with an example, but any others...
I'm on Fedora Core 6 (64 bit) after "yum install libjpeg-devel" I have downloaded and built PIL. It gives the message: --- JPEG support ok Looks like JPEG built okay, but when running selftest.py: IOError: decoder jpeg not available Why would it appear to have built correctly, but fail the selftest? ...
I intercept a packet and extract the payload. This payload is compressed jpeg bytestream data (for example this data is assigned to unsigned char *payload). I know that if I have a FILE pointer, then I can use libjpeg library to extract image information. My question is there a way to pass my pointer(*payload) to the libjpeg functions to...
I copied this code from the libjpeg example and im passing it standard files; FILE *soureFile; if ((soureFile = fopen(sourceFilename, "rb")) == NULL) { fprintf(stderr, "can't open %s\n", sourceFilename); exit(1); } jpeg_stdio_src(&jpegDecompress, soureFile); jpeg_read_header(&jpegDecompress, true); It results in a file pointe...
How can you (in C/C++) add text to a jpeg-file using libjpeg? I do not mean by editing pixels, but by adding text to the meta-data (like the png_set_text() libpng library for png files). ...
Hi I am having some trouble getting Django & PIL work properly since upgrading to Snow Leopard. I have installed freetype, libjpeg and then PIL, which tells me: --- TKINTER support ok --- JPEG support ok --- ZLIB (PNG/ZIP) support ok --- FREETYPE2 support ok but when I try to upload a jpeg through the django admin interface I get: ...
Hi everybody. So I have this problem. I have an IplImage that i want to compress to JPEG and do something with it. I use libjpeg. I found a lot of answers "read through examples and docs" and such and did that. And successfully written a function for that. FILE* convert2jpeg(IplImage* frame) { FILE* outstream = NULL; outstream=mallo...
I am using libjpeg for decode jpeg file. when decoding a large image, user may switch to another jpeg file, So is decode-interrupt supported by libjpeg? Many thanks! ...
Hello i have been trying unsuccesfully to compile on Xcode the latest version of openvrml + artoolkit, i get: ld: library not found for -ljpeg How can i fix this? Thanks in advance. ...
Okay, so I had an earlier problem with PIL that is still unresolved. Someone else had this problem and had success by removing the old JPEG library. I can't really do that on my machine, however, as it's RHEL and so many things are dependent on libjpeg and libjpeg-devel (when I tried yum remove libjpeg just to see, there were a total of ...
I have been working on this problem for a while now. I am trying to add JPEG support to a program with libjpeg. For the most part, it is working fairly well, But for some JPEGs, they show up like the picture on the left. Original Image It may not be obvious, but the background shows up with alternating red green and blue rows. If any...
I have a DLL that I am trying to link with a libjpeg LIB using MSVC 2008 that is generating Unresolved External Symbol errors for the libjpeg functions. I also have a test project that links with the exact same libjpeg library file and links without error and runs fine too. I have triple-checked my LIB path and dependent LIBS list se...
I've recompiled php 5.3.0 under OS X Server (10.6.3) in order to gain Freetype support in GD. As part of the process, I recompiled libjpeg-8a (and before that I tried libjpeg-7). But when I run apachectcl configtest, I get the following error: httpd: Syntax error on line 155 of /private/etc/apache2/httpd.conf: Cannot load /usr/libexec/...
Hi, right now i am implementing a Zig-Zag scan in C++. In addition to that i use the libJpeg8a. I want to intervene into the process when encoding images. My questions is: How can i connect to the scanning process out of C++??? Or: And where exactly is the zig zag scan located within the libJpeg??? ...
The APP0 to APP15 markers only support 65535 bytes each (I read this from libjpeg.doc). What if there's a bigger chunk of data to save in the jpeg file? ...
hey guys. I am trying to get my libjpeg working with python with little or no luck. I have followed this tutorial to get it up and running http://blaolao.com/setting-up-django-mysql-mysql-python-pil-etc on my 10.6, worked like a charm now that I am looking at getting this onto my server I am getting stuck I believe it already had lib...
I installed PIL. I can import PIL (with no error message) Then I ran the code mentioned here: http://stackoverflow.com/questions/3166221/python-images-display And I get this error message: IOError: decoder jpeg not available I understand this is Library called libjpeg and (?) it should be installed already. Or is it part of PIL? Whe...