An image whose white pixels are represented by white crosses.

 

function call:

[out_img1]=vsg('Point2Cross',in_img1);

 

Arguments:

in_img1 input image, 3 channel RGB, 1 channel greyscale or binary image, or DICOM image.

 

Description:

out_img1 – An image of the same size as the input image. For every pixel with a value of 255 in the input image, a cross 5 pixels high and 5 pixels wide is drawn on the output image, centred at the position of the input pixel. Each colour plane is treated separately, so red, green and blue crosses may be drawn if the 3 planes don’t have the same “white” (255) pixels.

 

Example:

img1 = openimage('lake.jpg');

h=figure;image(uint8(img1));set(h,'Name','Input image');

[out_img1]=vsg('Point2Cross',img1);

h=figure; image(uint8(out_img1));set(h,'Name','Point2Cross image');

 

Notes:

For DICOM images, each slice is treated separately. Binary images must be scaled so that they have a range of {0,255} rather than {0,1} (only an issue if the images are logical arrays created in MatLab).