ImageProcessor

Computes the parameters from the input image sequence.

The layout of the out_image_params vector is as follows:

• out_image_params.xy: The X and Y gradient components of in_gray. The values are normalized to the range [-1, 1]
• out_image_params.z: The time difference (in_gray - in_gray_old)
• out_image_params.w: The regularization value 1.0 / (alpha_square + grad_x*grad_x + grad_y*grad_y)

Parameters

alpha : float. Defaults to 0.05. Regularization gain.

float_precision : int. Defaults to ll.FloatPrecision.FP32. Floating point precision used accross the algorithm. The out_image_params output will be of this floating point precision.

Inputs

in_gray : ImageView. r8ui image.

in_gray_old: ImageView. {r16f, r32f} image. The low-pass filtered version of in_gray. The values are normalized to the range [0, 1].

Outputs

out_image_params : ImageView {rgba16f, rgba32f} image. Output image parameters