Jpeg data compression swift

1. Create an UIImage.
In order to convert an image to JPEG, you'll need an UIImage.
2. Create an extension.
Reduce the image height so it becomes smaller and uses less space.
3. Create a function.
Create a function to call the aspectFittedToHeight() extension we just created.
4. Convert to JPEG and compress the quality

Can .JPG be compressed?

The JPEG Image Compression Standard relies on the Discrete Cosine Transformation (DCT) to transform the image.
The DCT is a product C = U B U^T where B is an 8 x 8 block from the preprocessed image and U is a special 8 x 8 matrix..

Does JPEG compress data?

JPEG compression attempts to create patterns in the color values in order to reduce the amount of data that needs to be recorded, thereby reducing the file size.
In order to create these patterns, some color values are approximated to match those of nearby pixels..

How do I compress a JPEG image?

JPG files are relatively easy to compress.
Because they're widely used on the web, they're popular image files that can be compressed for free online.
However, always be cautious when using these "free" sites.
Several will take your image or info in exchange for a free service..

How does JPEG compress data?

JPEG files are compatible with most browsers, software, and apps.
JPEG files are highly compressible.
You can adjust JPEG image compression to fit any size.
JPEG images are small and easy to upload to websites..

How to compress image data in Swift?

JPEG (/ˈdʒeɪpɛɡ/ JAY-peg, short for Joint Photographic Experts Group) is a commonly used method of lossy compression for digital images, particularly for those images produced by digital photography.
The degree of compression can be adjusted, allowing a selectable tradeoff between storage size and image quality..

How to compress image data in Swift?

JPEG compression attempts to create patterns in the color values in order to reduce the amount of data that needs to be recorded, thereby reducing the file size.
In order to create these patterns, some color values are approximated to match those of nearby pixels..

What is the compression method of JPG?

The JPEG compression is a block based compression.
The data reduction is done by the subsampling of the color information, the quantization of the DCT-coefficients and the Huffman-Coding (reorder and coding).
The user can control the amount of image quality loss due to the data reduction by setting (or chose presets)..