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/*
* ******************************************************************************
* *
* *
* * This program and the accompanying materials are made available under the
* * terms of the Apache License, Version 2.0 which is available at
* * https://www.apache.org/licenses/LICENSE-2.0.
* *
* * See the NOTICE file distributed with this work for additional
* * information regarding copyright ownership.
* * 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.
* *
* * SPDX-License-Identifier: Apache-2.0
* *****************************************************************************
*/
package org.datavec.image.util;
public class ImageUtils {
/**
* Calculate coordinates in an image, assuming the image has been scaled from (oH x oW) pixels to (nH x nW) pixels
*
* @param x X position (pixels) to translate
* @param y Y position (pixels) to translate
* @param origImageW Original image width (pixels)
* @param origImageH Original image height (pixels)
* @param newImageW New image width (pixels)
* @param newImageH New image height (pixels)
* @return New X and Y coordinates (pixels, in new image)
*/
public static double[] translateCoordsScaleImage(double x, double y, double origImageW, double origImageH, double newImageW, double newImageH){
double newX = x * newImageW / origImageW;
double newY = y * newImageH / origImageH;
return new double[]{newX, newY};
}
}