How to resize an image

How to resize an image

         For resizing an image, we are using the method Load of the class Image to load an image into a cache memory. Then we apply Resize method to the image with a new size by specifying desired height and width `300x300` in pixels and save the result to a new file.

Example C# code:

using Aspose.Imaging;
using Aspose.Imaging.FileFormats.Png;
using Aspose.Imaging.FileFormats.Svg;
using System;
using System.IO;
string templatesFolder = @"c:\Users\USER\Downloads\templates\";
string dataDir = templatesFolder;
using (Image image = Image.Load(dataDir + "template.jpg"))
{
image.Resize(300, 300);
image.Save(dataDir + "result.jpg");
}
File.Delete(dataDir + "result.jpg");

         Additionally, you can make photo sizing proportionally the picture width or height and specify the resizing type by selecting `ResizeType.LanczosResample` parameter:

using Aspose.Imaging;
using Aspose.Imaging.FileFormats.Png;
using Aspose.Imaging.FileFormats.Svg;
using Aspose.Imaging.FileFormats.Webp;
using Aspose.Imaging.ImageOptions;
using System;
using System.IO;
string templatesFolder = @"c:\Users\USER\Downloads\templates\";
string dataDir = templatesFolder;
// Load an image from disk
using (Image image = Image.Load(dataDir + "template.jpg"))
{
if (!image.IsCached)
{
image.CacheData();
}
// Specifying only height, width and ResizeType
int newWidth = image.Width / 2;
image.ResizeWidthProportionally(newWidth, ResizeType.LanczosResample);
int newHeight = image.Height / 2;
image.ResizeHeightProportionally(newHeight, ResizeType.NearestNeighbourResample);
image.Save(dataDir + "result.png");
}
File.Delete(dataDir + "result.png");

         There are several Resize types available for resizing photos. Please see the link to the table which describes the resize type parameters.