libjpeg | Independent JPEG Group 's JPEG software | Compression library
kandi X-RAY | libjpeg Summary
kandi X-RAY | libjpeg Summary
This package contains C software to implement JPEG image encoding, decoding, and transcoding. JPEG (pronounced "jay-peg") is a standardized compression method for full-color and gray-scale images. This software implements JPEG baseline, extended-sequential, and progressive compression processes. Provision is made for supporting all variants of these processes, although some uncommon parameter settings aren’t implemented yet. We have made no provision for supporting the hierarchical or lossless processes defined in the standard. We provide a set of library routines for reading and writing JPEG image files, plus two sample applications "cjpeg" and "djpeg", which use the library to perform conversion between JPEG and some other popular image file formats. The library is intended to be reused in other applications. In order to support file conversion and viewing software, we have included considerable functionality beyond the bare JPEG coding/decoding capability; for example, the color quantization modules are not strictly part of JPEG decoding, but they are essential for output to colormapped file formats or colormapped displays. These extra functions can be compiled out of the library if not required for a particular application. We have also included "jpegtran", a utility for lossless transcoding between different JPEG processes, and "rdjpgcom" and "wrjpgcom", two simple applications for inserting and extracting textual comments in JFIF files. The emphasis in designing this software has been on achieving portability and flexibility, while also making it fast enough to be useful. In particular, the software is not intended to be read as a tutorial on JPEG. (See the REFERENCES section for introductory material.) Rather, it is intended to be reliable, portable, industrial-strength code. We do not claim to have achieved that goal in every aspect of the software, but we strive for it. We welcome the use of this software as a component of commercial products. No royalty is required, but we do ask for an acknowledgement in product documentation, as described under LEGAL ISSUES.
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QUESTION
I am working with .tif images. I try to read a .tif image in order to access it later on pixel level and read some values. The error that I get when using Pillow is this:
...ANSWER
Answered 2022-Mar-13 at 14:09Your image is 4-channels of 32-bits each. PIL doesn’t support such images - see Available Modes here.
I would suggest tifffile
or OpenCV’s cv2.imread(…, cv2.IMREAD_UNCHANGED)
QUESTION
I don't usually use Fedora or RPMs, so I'm flying blind here. There are lots of similar questions around here, but none that I found are to the exact point where I'm stuck.
I have the source RPM for an old game program on Fedora ("six" is the game). I want to add a couple of features, but first I want to make sure I know how to compile it so that any future problems are new. I have not made any changes yet at all.
I'm not completely helpless -- when I did
...ANSWER
Answered 2022-Jan-27 at 14:37If you see errors about a specific library missing, you can use dnf
itself to find out the name. For example, on Fedora 35:
QUESTION
Hi i have a instrucions that i need to isntall playwright inside of docker.
This is my dockerfile
...ANSWER
Answered 2022-Feb-08 at 23:32RUN apt-get update && playwright install-deps
While I have not used playwright, this seems to be a Docker issue. Playwright seems to be using apt-get
to install the dependencies. In that case, you need to ensure apt-get update
is run before playwright install-deps
. While you can use two separate RUN
statements to accomplish this, it is not advisable sinceapt-get update
may not be run because of Docker's caching capabilities.
QUESTION
This is my docker file:
...ANSWER
Answered 2022-Feb-08 at 11:43I fix it by enabling the GD lib, here is my Dockerfile configs:
QUESTION
I want to make the compilation and distribution of a C++ program portable and simple using conda
, so I've written a conda recipe. The build depends on some libraries to deal with image I/O, for example libpng
and libtiff
. The conda
versions of these libraries are specified in the recipe, an excerpt is shown below:
ANSWER
Answered 2022-Feb-01 at 14:10For future reference, the error was indeed in the cmake
process detecting wrong info regarding libpng
. Adding set(CMAKE_FIND_FRAMEWORK LAST)
in the CMakeLists.txt
fixed the issue! As reported at OSX + homebrew + CMake + libpng version mismatch issue by Kikaxa:
The problem is that classical cmake-style Find*.cmake search for the headers and libraries separately - and the results MAY and WILL mismatch in some cases. MacOS exaggerates the problem by having special case of frameworks, being searched BEFORE other locations by default.
QUESTION
I've developped Java application to make some litle web scraping tasks with Selenium. It work fine in my local environment with Windows 10 and both chrome / FireFox last versions with their appropriate driver path configured.
The thing is I need my application to be in a container to deploy it and I've got issues. I've created a Dockerfile based on Alpine, and installed what need to be installed (helped by some posts found on the internet). With the FireFox driver it's working almost fine for the first operations but some do not work the same as they do in my configuration in local and some even crash the client... That's why I've tried with chromium but I've got some issues with a connection to the browser not even working.
I've spent hours already on this and start thinking maybe I'm missing something, am I supposed to do that way by dowloading browsers and driver in my Dockerfile ?
For now I sucpect the versions of FireFox or the geckodriver associated not behaving the same as the one I've got on my machine and I can see the browser when It's working inside the container only logs I've added.
Dockerfile (for FireFox browser try) :
...ANSWER
Answered 2021-Aug-26 at 17:36Indeed Jortega I've based my image on the selenium image : https://hub.docker.com/r/selenium/standalone-firefox
Here is my Dockerfile
QUESTION
I'm converting a .Net 2.1 lambda to 3.1 (or higher) and struggling with resolving the references that convert html to pdf. I'm currently using code from this solution https://github.com/HakanL/WkHtmlToPdf-DotNet, which works fine running a console app in the container. The lambda package is introducing issues that break this logic. Using a new lambda solution with this WkHtmlToPdf-DotNet project, the deployed image fails with this exception
GetModule WkHtmlModuleLinux64 Exception System.DllNotFoundException: Unable to load shared library '/var/task/runtimes/linux-x64/native/libwkhtmltox.so' or one of its dependencies. In order to help diagnose loading problems, consider setting the LD_DEBUG environment variable: libjpeg.so.62: cannot open shared object file: No such file or directory
I am using the LD_DEBUG environment variable which shows before the exception: file=runtimes/linux-x86/native/libwkhtmltox [0]; dynamically loaded by /var/lang/bin/shared/Microsoft.NETCore.App/5.0.12/libcoreclr.so [0]
And I also output to the log a search for the file which yields this line:
GetFilePath res: /var/task/runtimes/linux-x64/native/libwkhtmltox.so
Any suggestions how to continue to troubleshoot this?
Thanks, Reuven
...ANSWER
Answered 2022-Jan-17 at 08:17I was able to resolve this issue by installing few of the packages that is required by DinkToPdf library in a docker container environment.
The issue however for installing those packages were not straight forward in Amazon Linux 2 instances. Below is the docker file I had to add for the DinkToPdf work properly.
QUESTION
I'm build Django app, and it's work fine on my machine, but when I run inside docker container it's rest framework keep crashing, but when I comment any connection with rest framework it's work fine.
- My machine: Kali Linux 2021.3
- docker machine: Raspberry Pi 4 4gb
- docker container image: python:rc-alpine3.14
- python version on my machine: Python 3.9.7
- python version on container: Python 3.10.0rc2
error output:
...ANSWER
Answered 2022-Jan-07 at 19:13You can downgrade your Python version. That should solve your problem; if not, use collections.abc.Mapping
instead of the deprecated collections.Mapping
.
Refer here: Link
QUESTION
i was containerizing my .Net + React.js application but during the process I have encountered an unexpected error. I got myself acquainted with similar posts but none of the solutions solved my problem. Since the build log is quite long I have placed in pastebin:
The dockerfile which I am using comes from the official documentation, and that's why it comes to me as a surpise that it does not work:
https://docs.microsoft.com/en-us/visualstudio/containers/container-tools-react?view=vs-2022
The Dockerfile itself:
...ANSWER
Answered 2021-Dec-24 at 01:04Deleting the npm install
tags from .csproj as suggested in this thread https://github.com/dotnet/sdk/issues/9593 by user PKLeso resolved the problem.
QUESTION
I've started working with Puppeteer and for some reason I cannot get it to work on my box. This error seems to be a common problem (SO1, SO2) but all of the solutions do not solve this error for me. I have tested it with a clean node package (see reproduction) and I have taken the example from the official Puppeteer 'Getting started' webpage.
How can I resolve this error?
Versions and hardware ...ANSWER
Answered 2021-Nov-24 at 18:42There's too much for me to put this in a comment, so I will summarize here. Maybe it will help you, or someone else. I should also mention this is for RHEL EC2 instances behind a corporate proxy (not Arch Linux), but I still feel like it may help. I had to do the following to get puppeteer working. This is straight from my docs, but I had to hand-jam the contents because my docs are on an intranet.
I had to install all of these libraries manually. I also don't know what the Arch Linux equivalents are. Some are duplicates from your question, but I don't think they all are:
pango
libXcomposite
libXcursor
libXdamage
libXext
libXi
libXtst
cups-libs
libXScrnSaver
libXrandr
GConf2
alsa-lib
atk
gtk3
ipa-gothic-fonts
xorg-x11-fonts-100dpi
xorg-x11-fonts-75dpi
xorg-x11-utils
xorg-x11-fonts-cyrillic
xorg-x11-fonts-Type1
xorg-x11-fonts-misc
liberation-mono-fonts
liberation-narrow-fonts
liberation-narrow-fonts
liberation-sans-fonts
liberation-serif-fonts
glib2
If Arch Linux uses SELinux, you may also have to run this:
setsebool -P unconfirmed_chrome_sandbox_transition 0
It is also worth adding dumpio: true
to your options to debug. Should give you a more detailed output from puppeteer, instead of the generic error. As I mentioned in my comment. I have this option ignoreDefaultArgs: ['--disable-extensions']
. I can't tell you why because I don't remember. I think it is related to this issue, but also could be related to my corporate proxy.
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