MATLAB vision.TextInserter does not insert text -


enter image description here

i trying insert text message image. not display , no error.

close clear clc  hvideoplayer = vision.videoplayer; hvideofilereader = vision.videofilereader; hvideofilereader.filename = 'img1.jpg';  frame = step(hvideofilereader);   hcsc = vision.colorspaceconverter; hcsc.conversion = 'rgb intensity'; frame = step(hcsc, frame);  @ = vision.autothresholder; frame = step(at, frame);   ccl = vision.connectedcomponentlabeler; [l num] = step(ccl, frame);  holeobjcount = 0;  i=1:num     framei = changem(l==i, 1, i);      framei = imcomplement(framei);      [li numi] = step(ccl, framei);      if numi > 1         holeobjcount = holeobjcount + 1;     end  end  message = sprintf('%d of %d objects have holes.', holeobjcount, num); disp(message);  osdmsg = vision.textinserter('%d of %d objects have holes.',...                               'color', uint8([255, 255, 255]), ...                              'location', [10 10],...                              'fontsize', 22); %the problem here frame = step(osdmsg, frame, int32([holeobjcount num]));  step(hvideoplayer, frame);   release(hvideofilereader);  release(hvideoplayer);

the problem because of color space of image. have attempted display rgb colored text on b/w image can not show natutally.

after removing color attribute, see text 

osdmsg = vision.textinserter('%d of %d objects have holes.',...                               'location', [10 10],...                              'fontsize', 22);

the problem now, text inserted black , cannot read clearly.

the problem after thresholding frame logical array. make text show use im2uint8 convert uint8.

a few other pointers: since working single image rather video can use imread instead of vision.videofilereader read in. can use imshow instead of vision.videoplayer same reason. also, if have matlab version r2013a or later, can use inserttext function instead of vision.textinserter.


Comments

Post a Comment

Popular posts from this blog

c++ - Difference between pre and post decrement in recursive function argument -

i have following sample code used pre-decrement void function(int c) { if(c == 0) { return; } else { cout << "dp" << c << endl; function(--c); cout << c << endl; return; } } this function give output input 4 : dp3 dp2 dp1 dp0 0 1 2 3 but when use post decrement void function(int c) { if(c == 0) { return; } else { cout << "dp" << c << endl; function(c--); cout << c << endl; return; } } output goes in infinite loop dp4 can explain me in detail why happens ? this happens because function(c--) called same value of c , when finishes c decremented. recursively called, hence called same value no chance of return , hit stack overflow error. assume this, int x = 1, y = 0; y = x++ result y == 1 , x == 2. if y = ++x , bot x , y 2.
Read more

php - Nothing but 'run(); ' when browsing to my local project, how do I fix this? -

i added new project. made mistake in projectname.conf file in sites-available apache2, led me reinstalling apache2. after reinstalling , re-enabling projects on every page of every project .. <body> run(); </body> .. i've run composer update, restarted service, restarted pc, checked config files, tried disabling new project. there nothing in error log, , access.log: 127.0.0.1 - - [15/may/2015:01:40:47 +0200] "get / http/1.1" 304 181 "-" "mozilla/5.0 (x11; ubuntu; linux x86_64; rv:38.0) gecko/20100101 firefox/38.0" maybe i'm forgetting apache2 reinstall? don't think did different last time installed it. looks haven't setup php correctly. take @ this great guide , maybe you're forgetting link php config apache2.
Read more

php - How can I echo out this array? -

i don't know how go grabbing data in variable , put foreach loop. class tree{ private $info = array( array('name'=>'jim','state'=>'nu','company'=>'nu','phone'=>array('cell'=>'5615111111','office'=>'5611111111'),'email'=>array('primary'=>'exs@example.com','ex@there.com')), array('name'=>'joe smith','city'=>'phoenix','phone'=>'4805551111','email'=>'jsmith@some_email.com'), array('name'=>'john doe','city'=>'chandler','company'=>'doe co.','email'=>array('jdoe@gmail.com','personal'=>'email@email.com'),'phone'=>'6025550002') ); } if you're inside of class, can access private variable using $this->variablename . example, i
Read more