Skip to main content

A Python web server that uses Pillow to dynamically scale, crop, transform and serve images from S3 or the local filesystem

Project description

Meet Thumpy

Thumpy is a Python web service that crops and scales images. It doesn’t store anything. It’s meant to be used as an origin server sitting behind a CDN such as Amazon CloudFront.

Configuration

Settings are stored in the settings.yaml file. They should include: - the name and access keys to your S3 bucket - compression quality (e.g. 80) - list of CORS allowed hosts

Interface

Thumpy serves images using the same paths as their storage location on S3. Conversion parameters are specified in the query string, using an interface inspired by TimThumb.

examples:

Scaling

Scale the width to 200px, and the height proportionally:

http://mythumpyserver.somewhere/castle.jpg?w=200

Scale the height to 150px, and the width propotionally:

http://mythumpyserver.somewhere/castle.jpg?w=200

Specify both height and width:

http://mythumpyserver.somewhere/castle.jpg?w=200&h=150

Scaling (Post processing)

Same as Scaling (above) but applied to the output image after all transformations

http://mythumpyserver.somewhere/castle.jpg?pw=200&ph=150

Cropping

Crop the width to 200 and the height to 100:

http://mythumpyserver.somewhere/castle.jpg?cw=200&ch=100

Crop the width and height to 50:

http://mythumpyserver.somewhere/castle.jpg?cw=50&ch=50
  • Thumpy will always scale first before any cropping.

  • Thumpy always crops from the center of the image.

Reveal Mask / Zoom Cropping

Minimum 3 parameters required: - Top offset (e.g. zct=100px) - Left offset (e.g. zcl=100px) - Width or Height of the output crop from the offsets. If only one is provided the other will automatically be assigned the other’s value.

The mask should be applied to the original image which means there is no scaling but only masking.

See: Scaling (Post processing) to get the scaled mask/crop.

Get 100px x 50px scaled crop off a larger image with a reveal mask of 350px x 175px applied at 20px x 10px top-left offset.

http://mythumpyserver.somewhere/castle.jpg?zcw=350&zch=175&zct=20&zcl=10&pw=100&ph=50

Greyscale

Example of a greyscale image with no resizing::

http://mythumpyserver.somewhere/castle.jpg?gray=1

Project details


Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Source Distribution

thumpy-0.4.3.tar.gz (484.6 kB view details)

Uploaded Source

File details

Details for the file thumpy-0.4.3.tar.gz.

File metadata

  • Download URL: thumpy-0.4.3.tar.gz
  • Upload date:
  • Size: 484.6 kB
  • Tags: Source
  • Uploaded using Trusted Publishing? No
  • Uploaded via: twine/2.0.0 pkginfo/1.5.0.1 requests/2.21.0 setuptools/41.0.1 requests-toolbelt/0.9.1 tqdm/4.36.1 CPython/3.7.4

File hashes

Hashes for thumpy-0.4.3.tar.gz
Algorithm Hash digest
SHA256 3853e6ea9e876e36e1979443c181a78f221c22aef4ed039d8f906239bd717f85
MD5 a9f3d6d6cf029b462c8d1227e78e2977
BLAKE2b-256 53ce85f75f462c850e78a2de334edc6ad15515e3bd7a9b5071480bf9a73b8768

See more details on using hashes here.

Provenance

Supported by

AWS AWS Cloud computing and Security Sponsor Datadog Datadog Monitoring Fastly Fastly CDN Google Google Download Analytics Microsoft Microsoft PSF Sponsor Pingdom Pingdom Monitoring Sentry Sentry Error logging StatusPage StatusPage Status page