CvColorImage increase contrast in brightness
Hello! How can i play with the contrast and brightness of a CvColorImage ?also im trying contrastStretch() get this [warning] ofxCvColorImage: contrastStretch(): not implemented
View ArticleSleep mode cancel or run in background
Yes this works as @cerupcat says, pasted in setup() in ofApp.mm (or testApp.mm etc)
View ArticleUnable to compile PG generated project in VS 2015 on Windows 10
Thanks for pointing this out. I've managed to compile the master branch on VS 2015, though I didn't manage to get any of the examples working, as they don't have a VS project file. I've tried creating...
View ArticleShowing the content of a pdf file
Hi,I wonder have you worked it out? When it comes to PDF conversion process, I have another question for you. I wonder have you ever tried to convert PDF to image files before? I am testing the...
View ArticleSine graph from array
HI,I am trying to display the streamed data that I get from an array so that I see the line moving as the data change.here is the code I am using. But the visual result I get is a bit odd. I don't...
View ArticleofxOMXplayer on Raspberry Pi 2, only white screen
Hello! This is first time writing a topic in here for me. very nervous :0 I'm going on a projection mapping project with RIP, so I used ofxPiMapper addon. My RIP 2 working well and compiling with...
View ArticleTrouble loading and drawing images from internet
Hi oF forum. I am currently developing an app that runs on the raspberry pi. It regularly (every 30 seconds) downloads an image from the internet and displays it on the screen. Very occasionally (once...
View ArticleSine graph from array
you should be using ofVertex not ofCurveVertex. a better way to do it is by using an ofVboMesh like: //.h ofVboMesh graph; //setup graph.setMode(OF_PRIMITIVE_LINE_STRIP); //update: graph.clear();...
View ArticleMore calls per second for more accurate timing, sequencer, threads
Hey there, i like to build a lil sequencer app for triggering sounds. most examples i checked are using the graphic card draw thread to trigger samples which in my opinion isn’t a good way doing this...
View ArticleofxJSONRPC - cannot load images from JSONRPC registered method
I have js app with thumbnails from 0 to 9. When I press thumbnail it sends integer from 0 to 9 to oF app. Server registers method which loads a image based on that integer: (...)...
View ArticleTwitter OAuth 'request_token' response issues with ofxHTTP for 0.9.0
Hi =) I am trying to get the request token from Twitter but what ever I do I only get an exception: "Connection reset by peer" (Code 54). I followed @bakercp's instructions quite accurately I guess:...
View ArticleUnable to compile PG generated project in VS 2015 on Windows 10
0.8.4 will not compile in 2015. The standards of the MSVC compiler changed somewhat significantly between 2012 to even 2013 and now to 2015. The master branch is still experimental but all the...
View ArticleCould I use VS2013 instead of VS2012express (error MSB8020)
Either use the current Git version (which might be unstable) or the branch by LiquidZym (https://github.com/liquidzym/openFrameworks/tree/VS2013). The latter worked very well for my last project.
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Could I use VS2013 instead of VS2012express (error MSB8020)
If you want to use OF 0.8.4, its built for the VS2012 compiler which will not work with VS2013, you can use 2013 to build your projects but the compiler version has to be msvc2012 (v110). Your error...
View ArticleHow to get OfxOpenNI to work on Linux?
I actually need to to be ofxOpenNI specifically as I need to run some old code that uses it. Any idea how can I do that?All I have done till now is copied ofxOpenNI directory into the addons...
View ArticleofxJSONRPC - cannot load images from JSONRPC registered method
It is likely because the callback from jsonrpc is happening outside the main thread. Opengl can't upload textures outside the main thread. I would load the image pixels without the texture then call...
View ArticleCvColorImage increase contrast
these functions exist for grayscale images, so maybe you can convert to ofxCvGrayscaleImages (creating a grayscale image for the red, green and blue channels) via...
View ArticleMore calls per second for more accurate timing, sequencer, threads
if you are working with sound you should be using the sound thread to calculate the timing. every time you get a callback you know which time it is from the tick count. timepertick =...
View ArticleSerial Port (OTG) for oF Android?
Hi, I'm trying to read/write to a serial port via openFrameworks using the NDK on Android Studio. I can successfully access my attached USB device in Java but am not finding any success in using...
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