How can I choose data points continuously from Fig during clicking the mouse

I'm referring application [Image segmenter] to fabrication my own analysis program. In the Graph Cut function, the application can choose the data points of foreground and background continuously during clicking the mouse, but I could only find [ginput] function and [getpts] function, and both can only acquire 1 data by 1 click. Is any way to do the clicking as same as the application?

Answer 1

[Sammit Jain]

Hi, I think what you want to do can be achieved using the impixel function.

Once you have an image being displayed, just call the impixel function and you can continuously select points. Hit Enter once you're done and it gives an array of coordinates. It'll also return the RGB values for those pixels.

Hope this helps.

[W Chen]

hello, Thank you for your answering.

Maybe my expression of 'continuously' was not correct. I want to choose several data points while clicking the mouse one time. the "impixel" has the same function as "ginput", which give me back one data point by one clicking...

[Walter Roberson]

ginput() will accept a number as input, and will collect that many points before returning them all.

You should also consider the roi functions such as impoint() and imfreehand()

[W Chen]

Thank you for the information.

I found that imfreehand() is appropriate for my objective.