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QUESTION
I try to build the OpenCV 4.5.1 SDK for Android because I need the SDK with contrib modules and the official release [1] only has the standard modules. But the libraries I build are almost 10x larger, for example: libopencv_core.a ==> 47.6 MB self compiled, 5.3 MB from the official repository (both for arm64-v8a)
Here is my cmake command, followed by ninja for compilation.
...ANSWER
Answered 2021-Mar-23 at 12:28I found the culprit:
QUESTION
I have a reference genome containing the following headers (lines starting with >) that I would like to be renamed to simply the digit/letter of the chromosomes. I would like a sed statement to do this systematic replacement, but I am new to sed. Elsewhere in the file are additional headers that should be unchanged, and the genetic sequences between the headers should remain unchanged.
...ANSWER
Answered 2021-Feb-05 at 19:14You can use
QUESTION
I am trying to compile OpenCV for Android with contrib modules, mainly I am interested in sfm. I did a lot of research and finaly I did the following in order to support sfm:
Compiled gflags Compiled Glog Compiled Ceres
After that I used this cmake command to build and generate (partial output is given below):
...ANSWER
Answered 2021-Jan-24 at 21:16I just finished build opencv with android using this :
for ceres
QUESTION
Generic o(X) is used to construct Object from several types. But GCC don't expands to typedef types.
...ANSWER
Answered 2021-Jan-11 at 00:03Since you have a definition for every type, you could specify the calling convention to be the same for all types.
For example:
QUESTION
I have an array in php.
...ANSWER
Answered 2021-Jan-09 at 11:19You could use the $key => $value
syntax to get both the key and the value with foreach
:
QUESTION
OpenCV 4.5 - Ubuntu - Jetson Nano 2GB
Hello I have a problem with getting video from my webcam (connected by USB to JetsonNano) by OpenCV
Here's my code:
...ANSWER
Answered 2020-Nov-27 at 06:41For points 1 and 2, you can test by passing the second argument to VideoCapture(filename[, apiPreference])
. Since you have OpenCV built with ffmpeg
and v4l2
. I would try the following options cv::CAP_FFMPEG
, and CAP_V4L2
. For point 4, make sure your webcam is 1080p.
QUESTION
I have a *.csv file with a few columns and I want to use the UsersTo and UsersCc list of users to send messages. The problem is with $CcAddress as I have multiple email address once I format them I get the following : error: Send-MailMessage : An invalid character was found in the mail header: ','. At C:\Discovery Scan Process\RSU notifications\Notifications.ps1:43 char:2
- Send-MailMessage -Encoding UTF32 -to $ToAddress -Cc $CcAddress -from $FromAddre ...
- ...
ANSWER
Answered 2020-Aug-26 at 21:54You can simply split at the comma and let powershell handle the rest. Here is my test that confirmed this.
QUESTION
I am trying to install latest OpenCV from here: https://github.com/opencv/opencv on my Ubuntu 20.04.
I need python and java support. I have installed a lot of per-requisites and used this cmake command to configure the build using the command line:
...ANSWER
Answered 2020-Jul-07 at 07:35Meanwhile I found the reason. The problem was this option: -DBUILD_opencv_world=ON When I removed it:
QUESTION
I´m trying to take Strings of input and print out the words that contain "av"
Here is my code:
...ANSWER
Answered 2020-Jun-15 at 18:41Inside your for loop, you should insert an if statement that sees if the i-th element of the array contains "av," similar to how you checked the overall string.
QUESTION
I am trying to create a program that classifies animals in C# where you specify the kingdom, phylum, class, order, family, genus and species of an animal and the program outputs what animal it is.
I am using a dictionary to represent all of the animals with a string animalType, string[] animalAttributes
To get it to work, I need to be able to find the key of a dictionary for a given value, which I created a method for, but I keep getting an out of index error.
I have looked through a few posts already but unfortunately, I couldn't find anything that solved this.
Thanks in advance for your help!
My Code
Animal.cs
...ANSWER
Answered 2018-Nov-23 at 06:22The issue is that you are assuming that the instance on this line is the same which is not. The instance for targetValue
is not the same as the one inserted in the valuesList
even if the values are the same.
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