imagemagick.net

Converting .HEIC to JPEG using imagick in C#

由 放肆的年华 提交于 2020-06-17 00:07:39
问题 I'm having trouble in converting heic file to jpeg I have already tried searching it online, i can find how to write to a folder but not how to get a byte[] of a converted file so that i can save it byte[] file = null; file = Convert.FromBase64String(dto.File); //Convert HEIC/HEIF to JPF if (extension == "HEIC" || extension == "HEIF") { try { using (MagickImageCollection images = new MagickImageCollection()) { images.Read(file); using (IMagickImage vertical = images.AppendVertically()) { var

ASP.net Unable to load DLL 'Magick.NET-Q16-x64.Native.dll': Access is denied. (Exception from HRESULT: 0x80070005 (E_ACCESSDENIED))

由 a 夏天 提交于 2019-12-24 01:15:46
问题 I am using image Magick to create images from Stream. I am getting the error mentioned in title on following lines. var image = new MagickImage(); It is an issue with ImageMagick or something else. Dont know how to solve this!! 回答1: Workaround: assign user to application pool identity with extra privileges. Solution (worked for me) Manually set temp directory MagickNET.SetTempDirectory(@"C:\Windows\Temp\"); Give user of Application Pool Identity write permissions to it. In my case I've

Unable to find an entry point named 'Environment_SetEnv' in DLL 'Magick.NET-Q8-x64.Native.dll'

由 十年热恋 提交于 2019-12-23 10:04:50
问题 Upgraded to latest ImageMagick / Magick.NET (7.0.2.901), and it built and ran fine locally, but explodes on the server with this error. Unable to find an entry point named 'Environment_SetEnv' in DLL 'Magick.NET-Q8-x64.Native.dll'. Seems to be a new issue. Judging by the change desc here: https://magick.codeplex.com/discussions/650746 The VC Runtimes are no longer required, so installing them wouldn't be the issue - and, I've installed 2008, 2012 and 2015 VC runtimes for prior versions of the

ImageMagick sampling factor

由 泪湿孤枕 提交于 2019-12-10 03:54:09
问题 I have been using ImageMagick command line tool for jpeg compression of the images. However, I'm trying to understand the role of sampling factor. It says the sampling factor is used to specify the block size i.e. 8x8 or 16x16. However, I can't find the default values used if I omit this parameter. Also, I tried fetching properties of an image by using the following command: identify -verbose image.jpg It shows sampling factor values as 1x1, 1x1, 1x1. What does it mean? Either it should be

Resize with crop using ImageMagick.NET and C#

由 空扰寡人 提交于 2019-12-09 18:25:50
问题 I have a big image that I want to resize to 230×320 (exactly). I want the system to resize it without losing aspect ratio. i.e. if the image is 460×650, it should first resize to 230×325 and then crop the extra 5 pixels of height. I am doing the following: ImageMagickNET.Geometry geo = new ImageMagickNET.Geometry("230x320>"); img.Resize(geo); But the images are not being resized to the exact size 230×320. I am using ImageMagick.NET in C# 4.0. 回答1: This is how I solved the issue. private void

GIF image loses its animation in Magick.net

由 孤街醉人 提交于 2019-12-08 12:46:16
问题 I am reading a GIF image and creating the ImageMagick object in C#. Then I write the same image to the output. In the output I get a static image without animation. MagickImage image = new MagickImage(ImagePath); Byte[] buffer = image.ToByteArray(); HttpContext.Current.Response.ContentType = "image/gif"; HttpContext.Current.Response.OutputStream.Write(buffer, 0, buffer.Length); HttpContext.Current.Response.StatusCode = 200; 回答1: A MagickImage is a single image. When you read a .gif file you

Removing Transparency using Imagemagick.NET

由 做~自己de王妃 提交于 2019-12-07 18:48:36
问题 A part of a software package I've written takes in a binary encoded PDF, converts it to a Bitmap, and saves it to a blob in a db. I'm discovering that although it's not immediately visible in the original in it's PDF form, there is transparency in the document that is completely visible in the converted bitmap. I've seen other posts where the command line version of imagemagick can "flatten" an image to remove the transparency layers. Can this somehow be done with the .NET package? How do I

ImageMagick with Visual Studio

由 ☆樱花仙子☆ 提交于 2019-12-06 07:19:39
问题 I'm trying to write a sample ImageMagick program in Visual Studio 2010. I have binary distribution of ImageMagick already installed on my system as I can use command line interface of ImageMagick. However, when I try to include "Magick++.h" in my C++ program, it says it can't open source file. I found the instructions on compiling and building ImageMagick from source, but is it possible to change my visual studio project settings so it can pick necessary references/libraries from the already

ImageMagick sampling factor

由 感情迁移 提交于 2019-12-05 04:49:13
I have been using ImageMagick command line tool for jpeg compression of the images. However, I'm trying to understand the role of sampling factor. It says the sampling factor is used to specify the block size i.e. 8x8 or 16x16. However, I can't find the default values used if I omit this parameter. Also, I tried fetching properties of an image by using the following command: identify -verbose image.jpg It shows sampling factor values as 1x1, 1x1, 1x1. What does it mean? Either it should be 8x8 or 16x16 or 32x32.... Could anyone please give me an idea where to find these details? Iamiuru From

ImageMagick with Visual Studio

由 |▌冷眼眸甩不掉的悲伤 提交于 2019-12-04 11:54:04
I'm trying to write a sample ImageMagick program in Visual Studio 2010. I have binary distribution of ImageMagick already installed on my system as I can use command line interface of ImageMagick. However, when I try to include "Magick++.h" in my C++ program, it says it can't open source file. I found the instructions on compiling and building ImageMagick from source, but is it possible to change my visual studio project settings so it can pick necessary references/libraries from the already installed version of ImageMagick? I am by no means an expert, but here is what worked for me: Using
订阅 imagemagick.net