Perform Instance Segmentation Using Mask R-CNN

thank you to click

i just following 'Perform Instance Segmentation Using Mask R-CNN' example

URL : "https://kr.mathworks.com/help/vision/ug/example-InstanceSegmentationUsingMaskRCNNDeepLearningExample.html"

I have download the file(instances_train2014.json, cocoapi-master, unpackAnnotations.m(was in helper file) )

but i don't know how to compling gason.

so i get a error

i just copy the example and change the file path

%download traindata
imageFolder = fullfile(dataFolder,"images");
captionsFolder = fullfile(dataFolder,"annotations");
if ~exist(imageFolder,"dir")
    mkdir(imageFolder)
    mkdir(captionsFolder)
end

annotationFile = fullfile(captionsFolder,"instances_train2014.json");
str = fileread(annotationFile);

%read and process training data
trainClassNames = ["person","car"];
numClasses = length(trainClassNames);
imageSizeTrain = [800 800 3];

cocoAPIDir = fullfile(dataFolder,"cocoapi-master","MatlabAPI");
addpath(cocoAPIDir);

unpackAnnotationDir = fullfile(dataFolder,"annotations_unpacked","matFiles");
if ~exist(unpackAnnotationDir,'dir')
    mkdir(unpackAnnotationDir)
end

helper.unpackAnnotations(trainClassNames,annotationFile,imageFolder,unpackAnnotationDir);

%create data 

i want to train coco dataset but i don't know c++ compling

how can i get complied data..?

Answer 1

[Shivam Malviya]

Hi Young Hun,

I understand you are working with the example Perform Instance Segmentation Using Mask R-CNN, and you are facing issues with the compilation of the gason parser.

In the file "gason.m", at line number 21, there is a command to compile the "gasonMex.cpp" file into a MEX file. Below is the command mentioned in the file;

mex('CXXFLAGS=\$CXXFLAGS -std=c++11 -Wall','-largeArrayDims','.\private\gasonMex.cpp','..\common\gason.cpp','-I..\common\','-outdir','private');

While executing this command if you encounter the following error;

Error using mex
g++: error: \-fexceptions: No such file or directory

Try out the following command;

mex('CXXFLAGS=$CXXFLAGS -std=c++11 -Wall','-largeArrayDims','.\private\gasonMex.cpp','..\common\gason.cpp','-I..\common\','-outdir','private');

Hope this helps!

Regards,

Shivam Malviya