Halcon算子之scale_image_range
read_image (Image, 'fabrik') scale_image_range (Image, ImageScaled, [100,50], [200,250])
* 将灰度值[-0.4,0.4]映射到[50,200] scale_image_range(Grady,CurvatureRowScale,[-0.4,50],[0.4,200])
解释实例
read_image (Image, '../test.png') rgb1_to_gray (Image, GrayImage) get_domain (GrayImage, Domain) get_region_points (Domain, Rows, Columns) get_grayval (GrayImage, Rows, Columns, Grayval) scale_image_range (GrayImage, ImageScaled, 100, 200) get_grayval (ImageScaled, Rows, Columns, Grayval2)
简短描述
scale_image_range — Scale the gray values of an image from the interval [Min,Max] to [0,255]
签名
scale_image_range(Image : ImageScaled : Min, Max : )
描述
Convenience procedure to scale the gray values of the input image Image from the interval [Min,Max] to the interval [0,255] (default). Gray values < 0 or > 255 (after scaling) are clipped. If the image shall be scaled to an interval different from [0,255], this can be achieved by passing tuples with 2 values [From, To] as Min and Max. Example: scale_image_range (Image, ImageScaled, [100,50], [200,250]) maps the gray values of Image from the interval [100,200] to [50,250]. All other gray values will be clipped.
参数
Image (input_object) (multichannel-)image(-array) → object (byte / int1 / int2 / uint2 / int4 / int8 / real / cyclic / direction / complex) The input image to be scaled ImageScaled (output_object) (multichannel-)image(-array) → object (byte / int1 / int2 / uint2 / int4 / int8 / real / cyclic / direction / complex) The scaled output image Min (input_control) number-array → (integer / real) The minimum gray value which will be mapped to 0. If a tuple with two values is given, the first value will be mapped to the second value. Default Value: 100 Max (input_control) number(-array) → (integer / real) The maximum gray value which will be mapped to 255. If a tuple with two values is given, the first value will be mapped to the second value. Default Value: 200
