I'm trying the OpenNI sample "openni_capture.cpp"
Before I've done this tutorial
http://seevisionc.blogspot.co.uk/2012/07/compiling-opencv-with-openni-for.html
but because I'm working with qt I don't know if i did something wrong, I suppose it's because of Cmake.txt
When I tried the sample I got:
CvCapture_OpenNI::CvCapture_OpenNI : Failed to enumerate production trees: Can't create any node of the reauested type!
../openni_capture quit with code 255
Can you help me? Thank you!
Related
I'm trying to run a bootstrap resampling on a GLM model, but I keep running into errors and I can't find any solution online.
The first problem in which I ran into is "variable lenght differs" when i try to use a normalized variable (sub.size_z) and a continuous variable trasformed into factor (hours). I checked my dataset and there are no NAs anywhere, so i don't know how to tackle the problem.
The second error is "Error: Naming mismatch from base to list of coefs", which happens when i try to run the bootstrap using a GLM without having trasformed the variables that i previously mentioned.
Can anyone point me towards a solution? Thanks a lot!
Here's the code I used!
data <-read.delim2("C:/Users/BRIZ_/Desktop/analisi scratching/Hypothesis 3/Hypothesis 3/database.txt")
library(car)
library(lme4)
library(MASS)
library(dplyr)
library(blmeco)
library(MuMIn)
library(lmerTest)
library(AER)
library(DHARMa)
sub.size_z<-scale(sub.size, center=TRUE,scale=TRUE)
hours<- as.factor(hour)
modelboot<-glmmTMB(sc.count~ offset(log(DURATION)) + hours + general.activity + sub.size_z + approach5+ id,data=data, family=genpois(link = "log"))
summary(modelboot)
bootstrap_model(modelboot,base_data=data,resamples =100)
I want to use Caffe's tool, compute_image_mean to compute the mean image, but the command line tells me that:
This tool requires OpenCV; compile with USE_OPENCV.
I've searched the Internet, and one guy said:
Well, this message suggests that you have compiled caffe without
OpenCV, i.e; with USE_OPENCV set to 0 in your Makefile.config.
Recompile with that settings commented out (as is the default) and try
again. And of course you need to have OpenCV installed for this to
work.
But I have already set USE_OPENCV := 0 when I compiled my Caffe.
Could someone help me to solve this problem?
I think you have misread the statement you found, it says you are compiling without OpenCV, which means WITH_OPENCV := 0 , to compile Caffe with OpenCV you have to set WITH_OPENCV := 1 , or just comment it out.
I met the same error information when I used caffe to do my work. I solved this problem by modifying something in the "Makefile.config" file.
The same as the lastest answer， I commented this line "USE_OPENCV := 0" with "#", so after compiling I can use OpenCV's function. I can use this way to deal with it, but you said that when you did this action and got another error. I think you didn't install your OpenCV correctly. Maybe it's your version problem or environment variable error. You can try to install OpneCV again.
I met the same error when I tried to make lmdb.
At first I uncomment "USE_OPENCV:=0" in the Makefile.config and recompile for many times, but it does not help.
So I try to comment "USE_OPENCV:=0" with # and recompile the caffe, it success.
I purchased the learnplus theme from themeforest and tried to build it. However while building i am constantly getting this error:
node_modules/adminplus/src/sass/sidebar-components/_card.scss
Error: Undefined variable: "$sidebar-spacing-horizontal".
on line 3 of node_modules/adminplus/src/sass/sidebar-components/_card.scss
>> margin-bottom: $sidebar-spacing-horizontal;
-----------------^
I tried to search a lot but was in vain as i am a total noob with no understanding about Sass. I assume its something to do with ROR syntax file which is compiled into .css.
Can someone help me with the issue? I am not understanding how to resolve this error? Any help will be highly appreciated
I am not familiar with that theme, but whenever you see some variable declarations of the theme, you can make something like this - $sidebar-spacing-horizontal: 20px;. After that you can try to compile again.
I try to use the well known "jpeglib" now available in version 9.
Overview: I am a programming starter in C using MS Visual C++ 2010 Express and read a C-book finally. My goal is to compress a RGB(.bmp)-file into JPEG. So I downloaded the jpeglib (v9), read all the install and so on *.txt-files. It was possible to compile the C-files to get cjpeg.exe, djpeg.exe, jpeg.lib and so on.
After this success I tried to use the example.c to get deeper into the jpeg and to control the compression. -> It did not work. Then I tried to use the jpeglib included in OpenCV. Same non working result, while the OpenCV code samples are compiled successfully.
I googled lots of samples, problem solutions and tips how to use jpeglib. Most helpful information I found here. But in the result I was still not able to compile my own jpeg-tool or example.c (rewriting the write_JPEG_file() function ).
Question: What in the basics could be wrong, when every other programmer just uses #include "jpeglib.h" in their codes to run the jpeg functions successfully? For me including this file seems not to be enough. Because of that I have to ask you and to relaunch a one year old Question that also did not helped solving my probs. I can not give you a specific error message because of multiple attempts to solve those issues.
Here is my current MS-VC++2010 config for using OpenCV 2.4.6:
C/C++ -> General -> Additional Include Directories:
C:\opencv\build\include
C:\opencv\build\include\opencv
C:\opencv\build\include\opencv2
C:\opencv\include
C:\opencv\include\opencv
C:\opencv\include\opencv2
C:\opencv\3rdparty\libjpeg
Linker -> General -> Additional Library Directories:
C:\opencv\build\x86\vc10\lib
Linker -> Input -> Additional Dependencies:
opencv_core246d.lib
opencv_imgproc246d.lib
opencv_highgui246d.lib
opencv_ml246d.lib
opencv_video246d.lib
opencv_features2d246d.lib
opencv_calib3d246d.lib
opencv_objdetect246d.lib
opencv_contrib246d.lib
opencv_legacy246d.lib
opencv_flann246d.lib
jpeg.lib [this I added into C:\opencv\build\x86\vc10\lib]
At last some threads I have already read:
Compressing IplImage to JPEG using libjpeg in OpenCV - 1
Compressing IplImage to JPEG using libjpeg in OpenCV - 2
Need help in reading JPEG file using libjpeg
how can i use jpeg_mem_src, jpeg_mem_dest in libjpeg-turbo?
If there is something missing you want to know I will do my best to add this information!
EDIT - Some error messages:
1>jpeg_coder.obj : error LNK2001: unresolved external symbol ""unsigned char * image_buffer" (?image_buffer##3PAEA)".
1>jpeg_coder.obj : error LNK2001: unresolved external symbol ""int image_height" (?image_height##3HA)".
1>jpeg_coder.obj : error LNK2001: unresolved external symbol """int image_width" (?image_width##3HA)".
First symbol should be typedefed in jpeglib.h as JSAMPLE FAR *JSAMPROW,
second and third are defined in rdjpgcom.c as unsigned int image_height, image_width;
Maybe, with a lot of luck, I figured out what is need to be done to get jpeglib running. In the current state I have to check and double check whether my problem solution is correct or not. At this point thank you very much for your attention for my issues. As soon as I am sure with the solution I will post it.
Problem Solution: I did not setup OpenCV correctly for using jpeglib. The mistake I made was to link the wrong *.lib-file. The proper file for linking is libjpegd.lib. Too bad that jpeglib v6.2 is included in OpenCV 2.4.6 instead of v9. The hint to add HAVE_JPEG to use jpeglib functions inside OpenCV I ignored completely. For now the problem is solved.
Problem Solution: I did not setup OpenCV correctly for using jpeglib. The mistake I made was to link the wrong *.lib-file.
The proper file for linking is libjpegd.lib.
Too bad that jpeglib v6.2 is included in OpenCV 2.4.6 instead of v9. The hint to add HAVE_JPEG to use jpeglib functions inside OpenCV I ignored completely. Thanks to all who tried solving this issue. For now the problem is solved.
I am trying to detect a pattern shown in two images. Hence I have been trying to use the SURF algorithim found in emgu.CV, but the "SURFFeature" example that is given gives me the following error:
An unhandled exception of type 'Emgu.CV.Util.CvException' occurred in Emgu.CV.dll
Additional information: OpenCV: norm == NORM_L1 || norm == NORM_L2 || norm == NORM_HAMMING
Any ideas how to fix this?
When I try the "Hello World" example and the face detection example, both seem to work fine.
Thanks for any advice!
Fouad.
PS: Emgu.CV can be downloaded from here: http://www.emgu.com/wiki/index.php/Main_Page
Apparently the build was messed up.
http://www.emgu.com/bugs/show_bug.cgi?format=multiple&id=74
Aha, found it. The error here is in Emgu.Cv.Gpu/GpuBruteForceMatcher.cs lines 22 and 27.
Line 22 currently reads:
L2Dist,
It should read: L2Dist = 4,
Line 27 currently reads: HammingDist
It should read: HammingDist = 6
Rebuild the Emgu.CV.Gpu dll with those changes and it works.