fill_interlace — Interpolate 2 video half images.
The operator fill_interlace calculates an interpolated full image or removes odd/even lines from a video image composed of two half images. If an image is recorded with a video camera it consists of two half images recorded at different times but stored in one image in the digital form. This can lead to several errors in further processing. In order to reduce these errors the video image is modified. Every second line is re-calculated or removed. The parameter Mode determines whether this must be done for even ('even', 'rmeven') or odd ('odd', 'rmodd') line numbers. If you choose 'even' or 'odd' the gray values in the generated lines are calculated as mean values from the direct neighbors above or below the current pixel, respectively. If you choose 'rmeven' or 'rmodd' the even or odd lines numbers are removed (in that case the resulting image is only half as high as the input image). The value 'switch' for Mode cause the odd and even lines to be exchanged.
Gray image consisting of two half images.
Full image with interpolated/removed lines.
Instruction whether even or odd lines should be replaced/removed.
Default value: 'odd'
List of values: 'even', 'odd', 'rmeven', 'rmodd', 'switch'
read_image(Image,'video_image') fill_interlace(Image,New,'odd') sobel_amp(New,Sobel,'sum_abs',3)
For each pixel: O(2).
If the parameter values are correct the operator fill_interlace returns the value 2 (H_MSG_TRUE). The behavior in case of empty input (no input images available) is set via the operator set_system('no_object_result',<Result>). If necessary an exception is raised.
sobel_amp, edges_image, regiongrowing, diff_of_gauss, threshold, dyn_threshold, auto_threshold, mean_image, binomial_filter, gauss_filter, anisotropic_diffusion, sigma_image, median_image
median_image, binomial_filter, gauss_filter, crop_part