CODEWITHSUNDEEP
dm-script
cr1315
cr1315

Reputation: 21

How can I select a subarea of an image with mouse and make it a new image?

I want to get some subarea of an image and make it a new image, and then execute further functions on it.

How can I use mouse to select a subarea of an image?
I know img[] could get the subarea of img, but I need some function by which I can interact with img. I mean, I want to get a WYSIWYG effect.

Is there any commands available, or is there any methods of ROI capable?

Upvotes: 0

Views: 125

Answers (1)

BmyGuest
BmyGuest

Reputation: 2949

There different ways to do what you want in a script: You could ask the user to place an ROI and then use the [] to address this area. If you want to get a new image from this selection (CTRL + C and CTRL + SHIFT + V without scripting) you would write:

ShowImage( ImageClone( img[] ) )
or
img[].ImageClone().ShowImage()

If you want to place a ROI for the user, you can used SetSelection() for a simple, rectangle, volatile ROI, or you use the full ROI commands like in this example:

image img := RealImage( "Test", 4, 256, 256 )      // create image
img.ShowImage()                                    // show the image (so that it has a display)
imageDisplay disp = img.ImageGetImageDisplay(0)    // Get the 'display' of an image 

ROI myR = NewRoi()                                 // create ROI
myR.ROISetRectangle( 110, 120, 130, 140 )          // Make it a rectangle of given area
myR.ROISetVolatile( 0 )                            // make it non-volatile
myR.ROISetLabel( "Selection" )                     // give it a label
myR.ROISetColor( 0, 1, 0 )                         // make it green

disp.ImageDisplayAddROI( myR )                     // add it to the display

A full list of ROI commands can be found in the following section of the F1 help documentation:

ROI help

Upvotes: 0

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