libjpeg Questions
2
Solved
libjpeg can read JPEG data from a FILE* or a buffer. My data is coming from a std::istream. I could read the entire std::istream into a buffer to use with libjpeg, but I'd rather have libjpeg read ...
31
Solved
I have uninstalled and installed Homebrew 3 times now because it seems to never allow me to install anything as it denies me permissions at the end of most installations.
As an example I will post...
4
Solved
I have been trying for several days to install OpenCV with Conan (on Windows 10). However, the installation is failing on building the libjpeg/9d dependency.
Conan profile:
[settings]
arch=x86_64 ...
5
Solved
I tried these commands:
pip install libjpeg8-dev
pip install libjpeg-dev
pip install libjpeg-devel
pip install libjpeg
pip install libjpeg62 libjpeg62-dev
but none of them works. What is the rig...
7
Solved
Is there anyone who succeed to include libjpeg in some compiler? I tried everything: Dev C++, VS10, CodeBlocks, copy the headers and the lib by hand, add with the linker but nothing. Right now I am...
Elliellicott asked 29/9, 2012 at 11:7
1
I used libexif to read and modify the exif metadata in JPEG file. I am not sure on how to write/save the modified contents in the original source image file?
Any ideas??
Thanks.
Kinescope asked 1/5, 2012 at 23:1
2
Solved
I want to optimize the whole test folder with jpg images from a command line.
I found this but it doesn't work:
cd /home/site/html/update/test/
find . -exec jpegtran -optimize "{}" "{}.opti.jpg" "...
Speechmaking asked 5/4, 2013 at 13:34
2
I get this error whenever I try to create an Image in JavaFX. Absolutely no images are loading, but everything else on the UI is. The only time I see this is when prism.verbose=true
Other answers ...
3
Solved
libjpeg or libjpeg-turbo are requirements for installing Pillow, which is a new requirement for storing images on django. So I need to install Pillow but that won't work until I get jpeg support wh...
Executant asked 12/7, 2016 at 14:13
0
I am trying to rotate a JPEG image in C++ using libjpeg v9 based on the "Orientation" parameter present in EXIF metadata. I am able to get the "Orientation" parameter and on its...
Horrendous asked 9/10, 2020 at 19:52
3
Solved
I'm using libjpeg right now to save JPEG images. If there is an error, libjpeg's default behavior is to call exit(), which I want to avoid since it's not a fatal error for my program. libjpeg allow...
2
Ater compiling libjpeg and then using it, I stumbled upon the problem:
JPEG parameter struct mismatch: library thinks size is 512, caller expects 492
after which the program halts. This happens ...
2
Solved
Any time I try to load an image I get an error saying CImg<unsigned char>::load(): Failed to recognize format of file. This happens for both jpg and png files.
I have found other posts about...
1
I have used Tensorflow's DecodeJpeg to read images while training a model. In order to use the same method on an android device, I compiled Tensorflow with Bazel for android with DecodeJpeg.
I trie...
Romantic asked 10/4, 2018 at 8:29
1
Solved
How do I install libjpeg 8 to /opt/local on OSX? The reason I am asking is that I would like to create small movies of brain activity using the MNE-C libraries.
I executed 'mne_make_movie' which r...
1
I'm currently in the (nightmare) task of trying to compile cImg and libjpeg in Windows. After many hours, I was finally able to build libjpeg and I've included it within the build process (cImg nee...
1
Solved
I want to build a DLL version of libjpeg 9b. According to the document here, it seems that we need to add a preprocessor __declspec(dllexport) or __declspec(dllimport) before the declaration of eac...
Moat asked 9/6, 2017 at 6:32
2
Solved
I'm trying to load part of big JPEG file (hundreds of megapixels) with a limited memory footprint. I need only about a 1000 scanlines of 20000. It seems that current implementation of libjpeg (as w...
3
Solved
I'm running OS X 10.6.7, Python 2.6, and writing a small wxPython application that uses PIL to manipulate an image and add some text to it.
After quite a bit of configuration woes with attempting ...
Agnesagnese asked 5/6, 2011 at 20:23
2
I'm looking for an example of how to save a YUYV format frame to a JPEG file using the libjpeg library.
Donohoe asked 6/5, 2013 at 1:15
6
Solved
I am using libjpeg to decode a jpeg image from disk to a memory buffer allocated on the heap. I use jpeg_read_scanlines to read and decode each scanline from the file. This is working perfectly, de...
Whop asked 11/4, 2011 at 10:12
5
Solved
I have found this function which uses libjpeg to write to a file:
int write_jpeg_file( char *filename )
{
struct jpeg_compress_struct cinfo;
struct jpeg_error_mgr jerr;
/* this is a pointer to...
1
I'm trying to use libexif to write exif data into a jpeg file. I'm pretty much following the example provided with it. I can understand all the Exif data blocks being written and everything, but ho...
9
Solved
I have read the other posts about the notorious _imaging C module error when installing PIL on Mac OS X and none of the solutions provided anywhere, including the PIL FAQ, have proven helpful.
I h...
Wallis asked 27/5, 2011 at 8:22
3
Solved
I am using the C++ JPEG library (libjpeg) and I have realized that when some functions fail exit() is called and the application is closed. How can I override this behavior and prevent the applicat...
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