Detrend img

Purpose

Detrends images.

Synopsis

[dimg, params, fitsurf] = detrend_img(img, order)

Description

Removes a linear or quadratic trend from an image. Inputs are the image to be detrended, (img), and the order of the polynomial to use in detrending, (order) which can be 1, 2 or 3. Outputs are the detrended image (dimg), the parameters used to detrend (params) and the fitted surface (fitsurf).

See Also

autocor_img, fft_texture, semivar, svd_texture, texture