How to save images in .webp and reduce image size without quality in Asp.net C#
To save images in the .webp format and reduce their size without losing quality, you can use libraries like `ImageSharp` or `ImageSharp.Web`. These libraries provide functionality to encode images to the WebP format and optionally apply compression to reduce file size.
Here's how you can modify your code to use `ImageSharp` to save images in .webp format and reduce their size:
```csharp
using System;
using System.IO;
using System.Net.Http;
using System.Text.RegularExpressions;
using System.Threading.Tasks;
using SixLabors.ImageSharp;
using SixLabors.ImageSharp.Processing;
using SixLabors.ImageSharp.Formats.WebP;
class Program
{
static async Task Main(string[] args)
{
string imageUrl = "https://example.com/image.jpg"; // Replace with your image URL
string title = "FolderName"; // Replace with your folder name
int i = 1; // Replace with your image number
string fpattern = "[^a-zA-Z_]+";
string replacement = " ";
string folderPath = Path.Combine("E:\\Imagesfolder", title);
Directory.CreateDirectory(folderPath);
HttpResponseMessage response = await client.GetAsync(imageUrl);
response.EnsureSuccessStatusCode();
byte[] imageBytes = await response.Content.ReadAsByteArrayAsync();
string imageName = Regex.Replace(Path.GetFileNameWithoutExtension(new Uri(imageUrl).LocalPath), fpattern, replacement).Trim();
string magen = title + " " + i;
string imagePath = Path.Combine(folderPath, magen + ".webp");
using (Image image = Image.Load(imageBytes))
{
// Apply compression or other optimizations here if needed
image.Mutate(x => x.Resize(image.Width / 2, image.Height / 2));
// Example: Resize the image to half its original size
// Save the image as .webp
using (FileStream outputStream = File.Create(imagePath))
{
image.Save(outputStream, new WebPEncoder());
}
}
}
}
```
Make sure to replace `"https://example.com/image.jpg"`, `"FolderName"`, and `1` with appropriate values.
In this code:
- `SixLabors.ImageSharp` is used to load, process, and save images.
- `client` is an instance of `HttpClient` that you need to initialize somewhere in your code.
- I've added resizing as an example of optimization. You can apply further optimizations as needed.
- `WebPEncoder` is used to encode and save the image in .webp format.
- The image is saved to the specified folder with the specified filename.
Remember to install the `ImageSharp` NuGet package if you haven't already done so. You can install it via the NuGet Package Manager or via the Package Manager Console with the following command:
```
Install-Package SixLabors.ImageSharp
```