I'm trying to use ECW files in my application. I've built GDAL Library whit this command:
./configure --with-ecw:/usr/local/hexagon
after completion of build process, when I Entered:
gdalinfo --formats | grep ECW
I got:
ECW -raster- (rw+): ERDAS Compressed Wavelets (SDK 5.5)
JP2ECW -raster,vector- (rw+v): ERDAS JPEG2000 (SDK 5.5)
also when I've used
gdalinfo map.ecw
it returns all metadata of ECW files.
but when I compile my C++ program, it returns:
Error: GDAL Dataset returned null from read
ERROR 4: `map.ecw' not recognized as a supported file format.
Dose anyone know why I can't use ECW files in C++ program?
By the way, I use
Cmake
,GDAL 3.3.0
,Erdas-ECW SDK 5.5 hexagon
for building the program.
I found the answer. This problem occurs if the gdal_bin binary package is installed before creating GDAL.
Just make sure gdal_bin is deleted before installing the version you created.
Related
I am trying to execute linking of C++ and Python with BOOST.
Using the example from https://www.boost.org/doc/libs/1_63_0/libs/python/doc/html/tutorial/tutorial/hello.html#tutorial.hello.let_s_jam, and issuing bjam at ~/libs/python/example/tutorial/ which contains these files:
hello.cpp hello.py Jamfile
The read-out from the console error is:
/home/benjamin/boost/boost_1_71_0/tools/build/src/tools/types/xml.jam:12:
in load ERROR: rule "Copyright" unknown in module "xml".
Here is what I undertook to solve this problem:
I built boost from boost_1_71_0.tar.bz2 using the ./b2 file in the directory /boost/boost_1_71_0/ which is dated November 14, 2019.
My Ubuntu 18.04 system has a b2 link at /usr/bin/b2 -> bjam, which is older (March 6, 2018) and the bjam file (March 6, 2018).
No other bjam files exist on the system.
From bjam for boost 1.54, I tried:
sudo-apt install bjam
error: E: Package 'bjam' has no installation candidate.
All the programs in the user-config.jam file (e.g., c++, msvc/code, python3) are correct, which is located in my /home/benjamin/boost/boost_1_71_0/tools/build/example/.
For pity's sake and to help me (newbie), please advise.
Looking at error message it seems that error is with file /home/benjamin/boost/boost_1_71_0/tools/build/src/tools/types/xml.jam
I checked with my local installation (which is boost 1.65.1), but I am not able to locate any file with name xml.jam. But I have few other .jam file at location /usr/share/boost-build/src/tools/types/. As example
asm.jam
# Copyright Craig Rodrigues 2005. Distributed under the Boost
# Software License, Version 1.0. (See accompanying
# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
type ASM : s S asm ;
So it seems that your xml.jam either invalid OR few lines should be commented (as in above file).
Try below options.
Check your xml.jam, if there are any content which are not related jam then you should comment out information.
Rename your xml.jam to xml.jam.bkp. This file may not be needed.(Not needed in my case with boost 1.65.1)
Try to install everything from Ubuntu package manager and use that. You can install all boost module by sudo apt install libboost-all-dev. I tried https://github.com/boostorg/python/tree/develop/example code with my local installed boost (1.65.1) from package manager and it work fine.
I read in GDAL documentation that starting 2.4 it is possible to open a raster in HDFS. I downloaded and compiled the latest source code available version and the generated libraries show it is 2.4 (libgdal.so.20.4.2). I compiled with option "-with-hdfs=yes" and "--with-java=yes".
I am trying to open a raster using:
Dataset raster = gdal.Open("/vsihdfs/hdfs://node:8020/user/hdfs /spatial_raster/input_raster/kahoolawe.tif", gdalconst.GA_ReadOnly);
but I am getting the following error: "ERROR 4: No such file or directory"
could anyone please tell me if hdfs virtual system not supported yet?, or maybe I configured it wrong when compiling?
Appreciate your help, thanks!
Important are environment variables JAVA_HOME and HADOOP_HOME.
Export CLASSPATH=$($HADOOP_HOME/bin/hadoop classpath --glob)
I hope this can help you :
https://github.com/OSGeo/gdal/issues/1333
https://github.com/OSGeo/gdal/pull/714
I'm trying to run the Facedetect sample using OpenCV, I compiled the code the build_all.sh file.
Then I ran the code with
sudo ./facedetect --cascade="../../data/haarcascades/haarcascade_frontalface_alt.xml" --nested-cascade="../../data/haarcascades/haarcascade_eye.xml" --scale=1.3 lena.jpg
A few instructions are displayed
This program demonstrates the cascade recognizer. Now you can use Haar or LBP features.
This classifier can recognize many kinds of rigid objects, once the appropriate classifier is trained.
It's most known use is for faces.
Usage:
./facedetect [--cascade=<cascade_path> this is the primary trained classifier such as frontal face]
[--nested-cascade[=nested_cascade_path this an optional secondary classifier such as eyes]]
[--scale=<image scale greater or equal to 1, try 1.3 for example>]
[--try-flip]
[filename|camera_index]
see facedetect.cmd for one call:
./facedetect --cascade="../../data/haarcascades/haarcascade_frontalface_alt.xml" --nested-cascade="../../data/haarcascades/haarcascade_eye.xml" --scale=1.3
During execution:
Hit any key to quit.
Using OpenCV version 2.4.8
Processing 1 --cascade=../../data/haarcascades/haarcascade_frontalface_alt.xml
from which we have cascadeName= ../../data/haarcascades/haarcascade_frontalface_alt.xml
Processing 2 --nested-cascade=../../data/haarcascades/haarcascade_eye.xml
Processing 3 --scale=1.3
from which we read scale = 1.3
Processing 4 lena.jpg
And in the end I get the following error:
OpenCV Error: Unspecified error (The function is not implemented. Rebuild the library with Windows, GTK+ 2.x or Carbon support. If you are on Ubuntu or Debian, install libgtk2.0-dev and pkg-config, then re-run cmake or configure script) in cvNamedWindow, file /home/userk/Development/OpenCV/opencv-2.4.8/modules/highgui/src/window.cpp, line 483
terminate called after throwing an instance of 'cv::Exception'
what(): /home/userk/Development/OpenCV/opencv-2.4.8/modules/highgui/src/window.cpp:483: error: (-2) The function is not implemented. Rebuild the library with Windows, GTK+ 2.x or Carbon support. If you are on Ubuntu or Debian, install libgtk2.0-dev and pkg-config, then re-run cmake or configure script in function cvNamedWindow
The packages libgtk2.0-dev and pkg-config were already installed. Do you guys have any advice?
SOLVED:
As Berak suggested, I recompiled opencv from its main directory with:
cmake -D CMAKE_BUILD_TYPE=RELEASE ..
make
sudo make install
I'm trying to get django-wiki running.
It works well so far, except I can't display .jpeg images.
At first I had trouble when only importing jpeg files in the webapp.
I fixed this modifying setup.py of PIL's setup.py as follows:
JPEG_ROOT = libinclude("/usr/lib")
# Line 214
add_directory(library_dirs, "/usr/lib")
add_directory(library_dirs, "/usr/lib/x86_64-linux-gnu")
Jpeg libs I have currently installed:
libjpeg-progs
libjpeg62:amd64
libjpeg62-dev:amd64
libjpeg8:amd64
libopenjpeg2:amd64
After install PIL with pip install PIL, I get this output which doesn't look that bad, at least I thought so
*** TKINTER support not available
--- JPEG support available
--- ZLIB (PNG/ZIP) support available
*** FREETYPE2 support not available
*** LITTLECMS support not available
No error messages (and no "decoder ntót available") and I can view the images properly on my server, which means upload works great. But in the wiki only the file names are shown and when I click on them I get
"This image failed to load."
Could someone please help me? I can't find any error output (debug mode is activated).
Thanks in advance
You are compiling software! You need to install development libraries for these things to compile, e.g. apt-get install libjpeg-dev.
Also, install Pillow, it has less chances of failure to compile - pip install pillow.
I am trying to re-compile sox source with mp3 support on CentOS 5. Note sox-12.18.1-1.el5_5.1 has been installed on my CentOS machine for a while.
Following http://techblog.netwater.com/?p=4, I installed the following packages using yum.
yum install gcc-c++ libmad libmad-devel libid3tag libid3tag-devel lame lame-devel flac-devel libvorbis-devel make
./configure shows the following.
BUILD OPTIONS
Debugging build............no
Distro name ...............not specified!
Dynamic loading support....no
Pkg-config location........$(libdir)/pkgconfig
Play and rec symlinks......yes
Symlinks enabled...........yes
OPTIONAL DEVICE DRIVERS
ao (Xiph)..................no
alsa (Linux)...............no
coreaudio (Mac OS X).......no
sndio (OpenBSD)............no
oss........................yes
pulseaudio.................no
sunaudio...................no
OPTIONAL FILE FORMATS
amrnb......................no
amrwb......................no
ffmpeg.....................no
flac.......................yes
gsm........................yes (in-tree)
lpc10......................yes (in-tree)
mp3........................yes
id3tag....................yes
lame......................yes
dlopen lame...............no
mad.......................yes
dlopen mad................no
oggvorbis..................yes
sndfile....................no
wavpack....................no
OTHER OPTIONS
ladspa effects.............no
magic support..............yes
png support................no
GOMP support...............yes
But after executing "make && make install", issuing
sox test.mp3 tmp1.mp3 reverse
returns
sox: Failed reading test.mp3: Do not understand format type: mp3
What am I missing here? Thanks.
I had the same issue.
Make sure that there is no other Sox installed on the server:
yum remove sox
Next:
make uninstall
make clean
./configure
make
make install