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GH-207: ResizeBilinear filter can support more pixel formats
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Sources/Accord.Imaging/AForge.Imaging/Filters/Base classes/BaseResizeFilter.cs
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|---|---|---|
| @@ -1,80 +1,113 @@ | ||
| // AForge Image Processing Library | ||
| // AForge.NET framework | ||
| // | ||
| // Copyright © Andrew Kirillov, 2005-2008 | ||
| // [email protected] | ||
| // | ||
|
|
||
| namespace Accord.Imaging.Filters | ||
| { | ||
| using System; | ||
| using System.Drawing; | ||
| using System.Drawing.Imaging; | ||
|
|
||
| /// <summary> | ||
| /// Base class for image resizing filters. | ||
| /// </summary> | ||
| /// | ||
| /// <remarks><para>The abstract class is the base class for all filters, | ||
| /// which implement image rotation algorithms.</para> | ||
| /// </remarks> | ||
| /// | ||
| public abstract class BaseResizeFilter : BaseTransformationFilter | ||
| { | ||
| /// <summary> | ||
| /// New image width. | ||
| /// </summary> | ||
| protected int newWidth; | ||
|
|
||
| /// <summary> | ||
| /// New image height. | ||
| /// </summary> | ||
| protected int newHeight; | ||
|
|
||
| /// <summary> | ||
| /// Width of the new resized image. | ||
| /// </summary> | ||
| /// | ||
| public int NewWidth | ||
| { | ||
| get { return newWidth; } | ||
| set { newWidth = Math.Max( 1, value ); } | ||
| } | ||
|
|
||
| /// <summary> | ||
| /// Height of the new resized image. | ||
| /// </summary> | ||
| /// | ||
| public int NewHeight | ||
| { | ||
| get { return newHeight; } | ||
| set { newHeight = Math.Max( 1, value ); } | ||
| } | ||
|
|
||
| /// <summary> | ||
| /// Initializes a new instance of the <see cref="BaseResizeFilter"/> class. | ||
| /// </summary> | ||
| /// | ||
| /// <param name="newWidth">Width of the new resized image.</param> | ||
| /// <param name="newHeight">Height of the new resize image.</param> | ||
| /// | ||
| protected BaseResizeFilter( int newWidth, int newHeight ) | ||
| { | ||
| this.newWidth = newWidth; | ||
| this.newHeight = newHeight; | ||
| } | ||
|
|
||
| /// <summary> | ||
| /// Calculates new image size. | ||
| /// </summary> | ||
| /// | ||
| /// <param name="sourceData">Source image data.</param> | ||
| /// | ||
| /// <returns>New image size - size of the destination image.</returns> | ||
| /// | ||
| protected override System.Drawing.Size CalculateNewImageSize( UnmanagedImage sourceData ) | ||
| { | ||
| return new Size( newWidth, newHeight ); | ||
| } | ||
| } | ||
| } | ||
| // AForge Image Processing Library | ||
| // AForge.NET framework | ||
| // | ||
| // Copyright © Andrew Kirillov, 2005-2008 | ||
| // [email protected] | ||
| // | ||
| // Accord Imaging Library | ||
| // The Accord.NET Framework | ||
| // http://accord-framework.net | ||
| // | ||
| // Copyright © César Souza, 2009-2017 | ||
| // cesarsouza at gmail.com | ||
| // | ||
| // This library is free software; you can redistribute it and/or | ||
| // modify it under the terms of the GNU Lesser General Public | ||
| // License as published by the Free Software Foundation; either | ||
| // version 2.1 of the License, or (at your option) any later version. | ||
| // | ||
| // This library is distributed in the hope that it will be useful, | ||
| // but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| // Lesser General Public License for more details. | ||
| // | ||
| // You should have received a copy of the GNU Lesser General Public | ||
| // License along with this library; if not, write to the Free Software | ||
| // Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | ||
| // | ||
|
|
||
| namespace Accord.Imaging.Filters | ||
| { | ||
| using System; | ||
| using System.Drawing; | ||
| using System.Drawing.Imaging; | ||
|
|
||
| /// <summary> | ||
| /// Base class for image resizing filters. | ||
| /// </summary> | ||
| /// | ||
| /// <remarks><para>The abstract class is the base class for all filters, | ||
| /// which implement image rotation algorithms.</para> | ||
| /// </remarks> | ||
| /// | ||
| public abstract class BaseResizeFilter : BaseTransformationFilter | ||
| { | ||
| /// <summary> | ||
| /// New image width. | ||
| /// </summary> | ||
| /// | ||
| protected int newWidth; | ||
|
|
||
| /// <summary> | ||
| /// New image height. | ||
| /// </summary> | ||
| /// | ||
| protected int newHeight; | ||
|
|
||
| /// <summary> | ||
| /// Width of the new resized image. | ||
| /// </summary> | ||
| /// | ||
| public int NewWidth | ||
| { | ||
| get { return newWidth; } | ||
| set | ||
| { | ||
| if (value <= 0) | ||
| throw new ArgumentOutOfRangeException("Value must be higher than zero."); | ||
| this.newWidth = value; | ||
| } | ||
| } | ||
|
|
||
| /// <summary> | ||
| /// Height of the new resized image. | ||
| /// </summary> | ||
| /// | ||
| public int NewHeight | ||
| { | ||
| get { return newHeight; } | ||
| set | ||
| { | ||
| if (value <= 0) | ||
| throw new ArgumentOutOfRangeException("Value must be higher than zero."); | ||
| this.newHeight = value; | ||
| } | ||
| } | ||
|
|
||
| /// <summary> | ||
| /// Initializes a new instance of the <see cref="BaseResizeFilter"/> class. | ||
| /// </summary> | ||
| /// | ||
| /// <param name="newWidth">Width of the new resized image.</param> | ||
| /// <param name="newHeight">Height of the new resize image.</param> | ||
| /// | ||
| protected BaseResizeFilter(int newWidth, int newHeight) | ||
| { | ||
| this.NewWidth = newWidth; | ||
| this.NewHeight = newHeight; | ||
| } | ||
|
|
||
| /// <summary> | ||
| /// Calculates new image size. | ||
| /// </summary> | ||
| /// | ||
| /// <param name="sourceData">Source image data.</param> | ||
| /// | ||
| /// <returns>New image size - size of the destination image.</returns> | ||
| /// | ||
| protected override System.Drawing.Size CalculateNewImageSize(UnmanagedImage sourceData) | ||
| { | ||
| return new Size(newWidth, newHeight); | ||
| } | ||
| } | ||
| } |
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