Is there any function that increases or multiplies the amount of pixels in an image?

Example: If an image contains 13 megapixel, is there a function that can double to 26 megapixels? I'm doing a project to detect tiny geometric shapes and I need to know if this function exists.

Answer 1

[Image Analyst]

Yes.

bigImage = imresize(smallImage, multiplicationFactor);

or

bigImage = imresize(smallImage, [desiredRows, desiredColumns]);

[Raphael Ferreira]

Thank you very much!