Crop JPEG via C# Cloud API
Crop JPEG using native .NET Cloud APIs without needing any image editor or 3rd-party libraries.
Get StartedHow to Crop JPEG Using C# Cloud API
In order to process images, we’ll use Aspose.Imaging.Cloud for .NET API which is a feature-rich, powerful and easy to use image manipulation and conversion API for C# platform. Open NuGet package manager, search for Aspose.Imaging-Cloud and install. You may also use the following command from the Package Manager Console.
Package Manager Console Command
PM> Install-Package Aspose.Imaging-Cloud
Steps to Crop JPEG via C# Cloud API
Developers can easily load & crop JPEG files in just a few lines of code.
- Load JPEG file as stream
- Create & set the instance of CreateCroppedImageRequest
- Set start position and crop area size
- Call the CreateCroppedImage method
- Get cropped image from response stream
System Requirements
Aspose.Imaging Cloud for .NET is supported on all major operating systems. Just make sure that you have the following prerequisites.
- Microsoft Windows or a compatible OS with .NET Framework, .NET Core, Windows Application, ASP.NET Web Application.
- Development environment like Microsoft Visual Studio.
- Aspose.Imaging Cloud for .NET referenced in your project.
Crop JPEG - Cloud
| using System; | |
| using System.IO; | |
| using Aspose.Imaging.Cloud.Sdk.Api; | |
| using Aspose.Imaging.Cloud.Sdk.Model; | |
| using Aspose.Imaging.Cloud.Sdk.Model.Requests; | |
| string ImageFileName = "example_image.jpeg"; | |
| string ImagesFolder = "ExampleImages"; | |
| string CloudFolder = "CloudImages"; | |
| string OutputFolder = "Output"; | |
| // Get ClientId and ClientSecret from https://dashboard.aspose.cloud/ | |
| // or use on-premise version (https://docs.aspose.cloud/imaging/getting-started/how-to-run-docker-container/) | |
| var api = new ImagingApi(clientSecret, clientId, "https://api.aspose.cloud"); | |
| /// <summary> | |
| /// Crop an image from cloud storage. | |
| /// </summary> | |
| public void CropImageFromStorage() | |
| { | |
| // Upload image to cloud storage | |
| using (var localInputImage = File.OpenRead(Path.Combine(ImagesFolder, ImageFileName))) | |
| { | |
| var uploadFileRequest = new UploadFileRequest(Path.Combine(CloudFolder, imageName), image); | |
| var result = api.UploadFile(uploadFileRequest); | |
| if (result.Errors?.Count > 0) | |
| throw new Exception($"Uploading errors count: {result.Errors.Count}"); | |
| } | |
| // Please refer to https://docs.aspose.cloud/imaging/supported-file-formats/#crop | |
| // for possible formats | |
| var format = "jpeg"; // Resulting image format. | |
| int? x = 10; | |
| int? y = 10; | |
| int? width = 100; | |
| int? height = 150; | |
| var folder = CloudFolder; // Input file is saved at the desired folder in the storage | |
| string storage = null; // We are using default Cloud Storage | |
| var request = new CropImageRequest(SampleImageFileName, x, y, width, height, format, folder, storage); | |
| using (var updatedImage = api.CropImage(request)) | |
| { | |
| // Save the image file to output folder | |
| var croppedImageName = Path.ChangeExtension(ImageFileName, "jpeg") | |
| var path = Path.GetFullPath(Path.Combine(OutputFolder, croppedImageName)); | |
| using (var fileStream = File.Create(path)) | |
| { | |
| updatedImage.Seek(0, SeekOrigin.Begin); | |
| updatedImage.CopyTo(fileStream); | |
| } | |
| } | |
| } | |
| /// <summary> | |
| /// Crop an image. Image data is passed in a request stream. | |
| /// </summary> | |
| public void CreateCroppedImageFromRequest() | |
| { | |
| using (var inputImageStream = File.OpenRead(Path.Combine(ImagesFolder, ImageFileName))) | |
| { | |
| // Please refer to https://docs.aspose.cloud/imaging/supported-file-formats/#crop | |
| // for possible formats | |
| var format = "jpeg"; | |
| int? x = 10; | |
| int? y = 10; | |
| int? width = 100; | |
| int? height = 150; | |
| string storage = null; // We are using default Cloud Storage | |
| string outPath = null; // Path to updated file (if this is empty, response contains streamed image) | |
| var request = new CreateCroppedImageRequest(inputImageStream, x, y, width, height, format, outPath, storage); | |
| using (var updatedImage = api.CreateCroppedImage(request)) | |
| { | |
| // Save the image file to output folder | |
| var croppedImageName = Path.ChangeExtension(ImageFileName, "jpeg") | |
| var path = Path.GetFullPath(Path.Combine(OutputFolder, croppedImageName)); | |
| using (var fileStream = File.Create(path)) | |
| { | |
| updatedImage.Seek(0, SeekOrigin.Begin); | |
| updatedImage.CopyTo(fileStream); | |
| } | |
| } | |
| } | |
| } |
About Aspose.Imaging Cloud API for .NET
Aspose.Imaging Cloud API is an image processing solution to process images (photos) within your cloud or web applications. It offers: cross-platform Image processing, including but not limited to conversions between various image formats (including uniform multi-page or multi-frame image processing), transformations (resize, crop, flip&rotate, grayscale, adjust), advanced image manipulation features (filtering, deskewing), AI features (i.e. object detection and reverse image search). It’s a Cloud API and does not depend on any software for image operations. One can easily add high-performance image conversion features with Cloud APIs within projects. Flexible integrations options including SDKs for various languages (Python, Ruby, .NET, Java, NodeJS, PHP) and the use of the REST API allow to make the integration easy.
Crop JPEGs via Online App
Crop JPEG documents by visiting our Live Demos website. The live demo has the following benefits:
JPEG What is JPEG File Format
A JPEG is a type of image format that is saved using the method of lossy compression. The output image, as result of compression, is a trade-off between storage size and image quality. Users can adjust the compression level to achieve the desired quality level while at the same time reduce the storage size. Image quality is negligibly affected if 10:1 compression is applied to the image. The higher the compression value, the higher the degradation in image quality.
Read MoreOther Supported Conversions
Using C# Cloud API, one can easily crop different formats including: