Compute the lowest grey level from the input image.

 

function call:

[num1]=vsg('LowestGrey',in_img1);

 

 

Arguments:

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

 

Description:

num1 – a double representing the lowest greyscale intensity for the image.

 

Example:

img1 = openimage('lake.jpg');

[num1]=vsg('LowestGrey',img1)

num1 =  0

 

Notes:

1. For DICOM images, the function finds the lowest value across all slices.

2. For RGB images, the function finds the lowest value across all colour planes.