An image is rotated in a clockwise direction by a user specified amount.

 

function call:

[out_img1]=vsg('RotateImg',in_img1,angle);

 

Arguments:

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

angle – double, angle in degrees by which the image should be rotated. Positive values rotate the image in an anticlockwise direction as is the convention.

 

Description:

out_img1 – An image of the same size as the input image. The output image is a rotated version of the input image.

 

Example:

img1 = openimage('lake.jpg');

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

[out_img1]=vsg('RotateImg',img1,30);

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

 

Notes:

The output image values are calculated using a bilinear interpolation. Parts of the image that would be transformed to regions outside the image are cut-off to maintain the image dimensions.