minor cleanup

 * @param fat_zero         add this value squared to the sum of squared components before normalization

 * @param gpu_tasks        array of per-tile tasks (now bits 4..9 - correlation pairs)

 * @param num_tiles        number of tiles int gpu_tasks array prepared for processing

 * @param tilesx           number of tile rows

 * @param gpu_corr_indices allocated array for per-tile correlation tasks (4 bytes per tile)

 * @param pnum_corr_tiles  allocated space for pointer to a number of number of correlation tiles to process

 * @param corr_stride,     stride (in floats) for correlation outputs.

		int               colors,             // number of colors (3/1)

		int               is_lwir,            // do not perform shot correction

		float             params[5],

//		float             min_shot,           // 10.0

//		float             scale_shot,         // 3.0

//		float             diff_sigma,         // pixel value/pixel change

//		float             diff_threshold,     // pixel value/pixel change

//		float             min_agree,          // minimal number of channels to agree on a point (real number to work with fuzzy averages)

		float             weights[3],         // scale for R,B,G

		int               dust_remove,        // Do not reduce average weight when only one image differs much from the average

//		int               keep_weights,       // return channel weights after A in RGBA (was removed) (should be 0 if gpu_texture_rbg)?

// combining both non-overlap and overlap (each calculated if pointer is not null )

		size_t            texture_stride,     // in floats (now 256*4 = 1024)  // may be 0 if not needed

		float           * gpu_texture_tiles,  // (number of colors +1 + ?)*16*16 rgba texture tiles    // may be 0 if not needed

		int               colors,             // number of colors (3/1)

		int               is_lwir,            // do not perform shot correction

		float             params[5],          // mitigating CUDA_ERROR_INVALID_PTX

		/*

			float             min_shot,           // 10.0

			float             scale_shot,         // 3.0

			float             diff_sigma,         // pixel value/pixel change

			float             diff_threshold,     // pixel value/pixel change

			float             min_agree,          // minimal number of channels to agree on a point (real number to work with fuzzy averages)

		 */

		float             weights[3],         // scale for R,B,G

		int               dust_remove,        // Do not reduce average weight when only one image differs much from the average

		int               keep_weights,       // return channel weights after A in RGBA (was removed)