Remove out of place pixel values

Hi, I have a set of 180 images produced by an Ultrasound machine. The images are of the same object which in this case is an eraser. The eraser is in different position in each frame. I was able to know the difference between each two consecutive frames using phase correlation. I shifted all the frames in according to one frame(Frame 1) so that the eraser is aligned in all the frames. I took the average of the 180 frames and i obtained a blurred image of the eraser. I think the image was blurred due to the out of place pixels (pixels that are at very small pixel values in few of the frames where the value is like 200 pixels in most of the frames) My question is: how can i remove those our of place pixels so that the result image quality improves?

I have attached some frames and the average frame result i obtained

<<

>>

Answer 1

[Image Analyst]

You'd be best off if you could register the images before averaging. Try imregister(). You might have to clean up clutter and keep just the good stuff before calling it. You can also try deconvlucy().

[Yazan Awwad]

isnt aligning the images (after shifting all of them with respect to one frame which in this case is frame 1)is image registration. if no, can u give me an example of two images and the registered version of the result? Thank you in advance

[Yazan Awwad]

could u plz answer me , i still need help

[Image Analyst]

Yes, aligning and image registration mean the same thing.