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compressor-head

This application allows a user to compress/resize and convert an image before downloading it. This saves the user data that otherwise would be used to download big images. Also I have used the GCP memcache library which speeds up the process if same image is being retrieved by multiple users.

Usage

URL - http://compressor-head.appspot.com/image/?image_url=[IMAGE_URL]&width=[WIDTH]&height=[HEIGHT]&format=[FORMAT]

where

*IMAGE_URL* is the URL of the image which is to be compressed.
*WIDTH* is the desired width. 
*HEIGHT* is the desired height.
*FORMAT* is the desired image format (Supported formats - JPEG, PNG, WEBP, GIF, BMP, TIFF).

Both WIDTH and HEIGHT should be positive integers. Both WIDTH and HEIGHT cannot be zero. If one of the two is zero it will scale that non-zero dimension and the other dimension will be scaled such that the aspect ratio remains the same. If both are not zero, both dimensions will scale accordingly which might change the aspect ratio of the image.

Usage example

Sample Image URL - http://compressor-head.appspot.com/image
This is a 5.8 MB JPEG image. Dimension 5649×3684

To resize the image -

  • Resize (Width) : http://compressor-head.appspot.com/image/?image_url=http://compressor-head.appspot.com/image&width=500&height=0&format=jpeg

    This will return an image 37 KB JPEG image with dimensions 500x326

  • Resize (Height) : http://compressor-head.appspot.com/image/?image_url=http://compressor-head.appspot.com/image&width=0&height=250&format=png

    This will return an image 164 KB PNG image with dimensions 383x250

  • Resize (Width & Height) : http://compressor-head.appspot.com/image/?image_url=http://compressor-head.appspot.com/image&width=500&height=350&format=jpeg

    This will return an image 41 KB JPEG image with dimensions 500x350

Author

@m-murad

License

Apache Version 2.0