convert_2hsv_rgba
Tcl_Obj* imageObj

crimp_image* image;
crimp_image* result;
int          x, y, h, s, v;

crimp_input (imageObj, image, rgba);

result = crimp_new_hsv (image->w, image->h);

for (y = 0; y < image->h; y++) {
    for (x = 0; x < image->w; x++) {

	crimp_color_rgb_to_hsv (R (image, x, y),
				G (image, x, y),
				B (image, x, y),
				&h, &s, &v);

	H (result, x, y) = h;
	S (result, x, y) = s;
	V (result, x, y) = v;
    }
}

Tcl_SetObjResult(interp, crimp_new_image_obj (result));
return TCL_OK;


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