Drawing with touchscreen
Hello All, I have read the drawing tutorial, and understand how to do some basic drawing functions. I would like to draw using a touchscreen. There a library that can help me do that?
Hello All, I have read the drawing tutorial, and understand how to do some basic drawing functions. I would like to draw using a touchscreen. There a library that can help me do that?
Sorry, but drawing and touchscreen are not really computer vision topics...
Otherwise you won't really need any library. Touchscreen works basically as a mouse. So, using your favourite framework (Qt, MFC, Java...) put a bitmap control with a bitmap on the screen, a mouse callback (onMouse(x,y,event)
), and on mouse button down event change the color of the current pixel of the bitmap.
This is possible even in OpenCV, but as I said, it wasn't created for this.
Asked: 2016-09-27 07:46:42 -0600
Seen: 597 times
Last updated: Sep 27 '16
How do I draw irregular contours of MSER regions
how can I fill plane of connected line at the OpenCV ?
how to draw video on mfc "edit control bar"
drawing a single pixel using a cv::Mat image (cvSet2D?)
Why python "line()" draw one line when called three times ?
How to draw ellipse with first python function ?
Is it possible to draw half circle?
Android - How to display image/animation over camera? [closed]