| #------------------------------------------------------------- |
| # |
| # Licensed to the Apache Software Foundation (ASF) under one |
| # or more contributor license agreements. See the NOTICE file |
| # distributed with this work for additional information |
| # regarding copyright ownership. The ASF licenses this file |
| # to you under the Apache License, Version 2.0 (the |
| # "License"); you may not use this file except in compliance |
| # with the License. You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, |
| # software distributed under the License is distributed on an |
| # "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| # KIND, either express or implied. See the License for the |
| # specific language governing permissions and limitations |
| # under the License. |
| # |
| #------------------------------------------------------------- |
| |
| # This is an image data augmentation function. It inverts an image.It can handle one or multiple images |
| # |
| # .. code-block:: python |
| # |
| # >>> import numpy as np |
| # >>> from systemds.context import SystemDSContext |
| # >>> from systemds.operator.algorithm import img_invert_linearized |
| # >>> |
| # >>> with SystemDSContext() as sds: |
| # ... img = sds.from_numpy( |
| # ... np.array([[ 10., 20., 30., |
| # ... 40., 50., 60., |
| # ... 70., 80., 90. ]], dtype=np.float32) |
| # ... ) |
| # ... result_img = img_invert_linearized(img, 200.).compute() |
| # ... print(result_img.reshape(3, 3)) |
| # [[190. 180. 170.] |
| # [160. 150. 140.] |
| # [130. 120. 110.]] |
| # |
| # |
| # INPUT: |
| # --------------------------------------------------------------------------------------------- |
| # img_in Input images as linearized 2D matrix with top left corner at [1, 1] (every row represents a linearized matrix/image) |
| # max_value The maximum value pixels can have |
| # --------------------------------------------------------------------------------------------- |
| # |
| # OUTPUT: |
| # ------------------------------------------------------------------------------------------- |
| # img_out Output images (every row of the matrix represents a linearized image) |
| # ------------------------------------------------------------------------------------------- |
| |
| m_img_invert_linearized = function(Matrix[Double] img_in, Double max_value) return (Matrix[Double] img_out) { |
| img_out = img_invert(img_in,max_value) |
| } |