Convert image format in Swift like Sharp library do in NodeJS-CodePudding

I am a web developer who learning Swift language, I use Sharp library to convert the image (may several different format or just Buffer or ArryaBuffer)which get from remote url to any format like jpeg、png、webp before. Now I want to do same thing in Swift but not find any library can do that like Sharp library in NodeJS do, so I have several question:

swift's http request the image's format is 'Data' type(no matter the image is which format), so whether i can convert the 'Data' type to any image format like jpeg or webp?
As I mention above, is there have any library like Sharp do in NodeJS that do same thing in Swift?

Many thanks!

CodePudding user response：

Yes, you can convert the Data type to an image format such as JPEG or WEBP in Swift. You can use the UIImage(data:) initializer to convert the Data object to a UIImage object and then use the jpegData(compressionQuality:) or pngData() method to convert the UIImage object to JPEG or PNG data, respectively. For WEBP, you can use libraries such as WebP or SwiftWebP which provide the functionality to convert Data to WEBP format.

Here's an example of how you can convert a Data object to a JPEG image:

let imageData: Data = ... // The data for the image
if let image = UIImage(data: imageData) {
    let jpegData = image.jpegData(compressionQuality: 0.8)
    // Do something with the JPEG data
}

Here's an example of how you can convert a Data object to a WEBP image using SwiftWebP library:

let imageData: Data = ... // The data for the image
let webpData = WebP.encode(imageData, quality: 80, preset: .photo, config: nil)

You can then save the jpegData or webpData to a file, upload it to a server, or perform other operations with it.

There are several libraries in Swift that can be used to manipulate images, such as Core Image, Core Graphics, and Image I/O. These libraries provide a wide range of functionality, from basic image processing and manipulation to more advanced features like facial recognition and image filtering. Some popular libraries for image processing in Swift include:

Kingfisher - An image processing library for loading and caching images from the web.

SDWebImageSwiftUI - An image loading and caching library that is designed to work with SwiftUI.

Nuke - An image loading and caching library that provides a wide range of features including preheating and advanced image processing.

It's worth noting that these libraries are not directly equivalent to Sharp in NodeJS, but they do provide similar functionality.