Automatically align two images that differ by a rotation and a scale change. It closely parallels another example titled Find Image Rotation and Scale. Instead of using a manual approach to
Use imregister , imregtform and imwarp to automatically align two volumetric datasets: a CT image and a T1 weighted MR image collected from the same patient at different times. Unlike some
Perform a simple affine transformation called a translation. In a translation, you shift an image in coordinate space by adding a specified value to the x- and y-coordinates. (You can also
Align or register two images that differ by a rotation and a scale change. You can use fitgeotrans to find the rotation angle and scale factor after manually picking corresponding points. You
Use phase correlation as a preliminary step for automatic image registration. In this process, you perform phase correlation, using imregcorr , and then pass the result of that
Use imregister to automatically align two magnetic resonance (MRI) images to a common coordinate system using intensity-based image registration. Unlike some other techniques, it does
Register an aerial photo to an orthophoto. Two images of the same scene can only be compared directly if they are in the same coordinate system. Image registration is the process of
Use spatial referencing objects to understand the spatial relationship between two images in image registration and display them effectively. This example brings one of the images,
Many properties of geometric transformations by applying different transformations to a checkerboard image.
Specify the fill values used by imwarp when it performs a geometric transformation. When you perform a transformation, there are often pixels in the output image that are not part of the
Find a template image within a larger image. Sometimes one image is a subset of another. Normalized cross-correlation can be used to determine how to register or align the images by
You can combine multiple transformations into a single matrix using matrix multiplication. The order of the matrix multiplication matters.
Rotate an image using the imrotate function. When you rotate an image, you specify the image to be rotated and the rotation angle, in degrees. If you specify a positive rotation angle, the