imagesharp

ImageSharp.Web - resize image by querystring in Asp.Net Core 3.1

由 ╄→尐↘猪︶ㄣ 提交于 2021-02-11 14:48:14
问题 I am trying to use ImageSharp.Web to resize images through querystring parameters eg: http://localhost:5001/content/photo/img.jpg?width=800&height=600 I created a new MVC Asp.Net Core 3.1 project, installed the packages and followed the Documentation I tried the minimum configuration described and several variations, but it seems that the middleware is not intercepting the image request. I always get the original image and no error is triggered. Am I missing something? What would be the

How to add transparent padding to a jpg and save it as png with transparency?

由 ↘锁芯ラ 提交于 2021-02-10 20:25:36
问题 The documentation for SixLabors ImageSharp is very limited, and most google searches leads to GitHub, which is not very helpful. How can I upload a jpg, .Mutate it with transparent padding and save it as a png with transparency? This is the code I have so far. If the uploaded image is a png, transparent padding works, but jpgs get black padding: private static void ResizeAndSavePhoto(Image<Rgba32> img, string path, int squareSize) { Configuration.Default.ImageFormatsManager.SetEncoder

How to add transparent padding to a jpg and save it as png with transparency?

由 两盒软妹~` 提交于 2021-02-10 20:24:53
问题 The documentation for SixLabors ImageSharp is very limited, and most google searches leads to GitHub, which is not very helpful. How can I upload a jpg, .Mutate it with transparent padding and save it as a png with transparency? This is the code I have so far. If the uploaded image is a png, transparent padding works, but jpgs get black padding: private static void ResizeAndSavePhoto(Image<Rgba32> img, string path, int squareSize) { Configuration.Default.ImageFormatsManager.SetEncoder

Shrink image file using ImageSharp

由 耗尽温柔 提交于 2021-02-08 07:39:46
问题 I need to shrink every image I get that is more than 10MB. File types are png, jpg and gif. I saw that ImageSharp has an option to resize an image: Resize(new ResizeOptions { Mode = ResizeMode.Max, Size = new Size(maxFileSize) } I saw a lot of examples using the resize function with width and height, but none using this one size option, and no documentation explain exactly what "size" means. I've tried the following: Shrinking an image of 22.2MB using maxFileSize=1024 yielded a picture of 527

Uploading image file to AWS Lambda .Net Core application from browser results in unusable file - how to fix?

由 穿精又带淫゛_ 提交于 2020-03-06 10:15:10
问题 I was uploading a jpg image from my browser, as a part of a form, to my .Net Core web api which resides on AWS Lambda. It uploaded but resulted in errors when I tried to process it using ImageSharp. Also I noticed that the file size of the uploaded version was almost double the size of the original. Note that there was no a problem when uploaded locally in my Windows environment running from Visual Studio 2019 Preview. It is the version that was published to AWS Lambda from Visual Studio that

Convert ImageSharp.Image to ImageSharp.PixelFormats.Rgba32?

由 回眸只為那壹抹淺笑 提交于 2020-01-24 09:38:09
问题 I am following a tutorial (https://opentk.net/learn/chapter1/4-textures.html) using ImageSharp. How do I convert the type 'ImageSharp.Image' to 'ImageSharp.PixelFormats.Rgba32'? To load the Image, I am using Image<Rgba32> image = Image.Load(path); but I keep getting the error: Cannot implicitly convert type 'SixLabors.ImageSharp.Image' to 'SixLabors.ImageSharp.Image<SixLabors.ImageSharp.PixelFormats.Rgba32>'. An explicit conversion exists (are you missing a cast?). 回答1: The API change in the

Convert Image<Rgba32> to Byte[] using ImageSharp

由 天大地大妈咪最大 提交于 2019-12-10 17:45:54
问题 How can I convert an image to array of bytes using ImageSharp library? Can ImageSharp library also suggest/provide RotateMode and FlipMode based on EXIF Orientation? 回答1: If you are looking to convert the raw pixels into a byte[] you do the following. var bytes = image.SavePixelData() If you are looking to convert the encoded stream as a byte[] (which I suspect is what you are looking for). You do this. using (var ms = new MemoryStream()) { image.Save(ms, imageFormat); return ms.ToArray(); }

How to create Gif .net Core2 , with ImageSharp

由 喜夏-厌秋 提交于 2019-12-07 23:23:02
问题 Is the any way to create a gif from some jpegs in .net core2 with ImageSharp? I could create a gif from some jpegs with Magick.Net, but it does'n t work on Linux. I wanna do this on Ubuntu 14. EDIT I could create a Gif from Jpegs with ImageSharp. This is my source code: var ite = fsArray.GetEnumerator(); // fsArray is FileStream Array ite.MoveNext(); using (var image1 = Image.Load(ite.Current.Name)) { image1.Mutate(x => x.Resize(width, height)); // loop while (ite.MoveNext()) { using (var

Detect picture format with SixLabors ImageSharp

由 妖精的绣舞 提交于 2019-12-07 06:30:20
问题 How do I get the image format using SixLabors.ImageSharp? In version 1.0.0-alpha9-00152 I could use: Image<Rgba32> image = Image.Load(GetBytesFromBlobStorage()); IImageFormat format = image.CurrentImageFormat; but .CurrentImageFormat() doesn't seen to be able in beta version 1.0.0-beta0001 . I want to know if the image is .png , .bmp or .jpeg . 回答1: Yeah, we moved your cheese a little bit with 1.0.0-beta0001 . The signature you are looking for is now. public static Image<TPixel> Load<TPixel>

How to create Gif .net Core2 , with ImageSharp

由 廉价感情. 提交于 2019-12-06 11:59:45
Is the any way to create a gif from some jpegs in .net core2 with ImageSharp? I could create a gif from some jpegs with Magick.Net, but it does'n t work on Linux. I wanna do this on Ubuntu 14. EDIT I could create a Gif from Jpegs with ImageSharp. This is my source code: var ite = fsArray.GetEnumerator(); // fsArray is FileStream Array ite.MoveNext(); using (var image1 = Image.Load(ite.Current.Name)) { image1.Mutate(x => x.Resize(width, height)); // loop while (ite.MoveNext()) { using (var image2 = Image.Load(ite.Current.Name)) { image2.Mutate(x => x.Resize(width, height)); image2.Frames.First(
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