img-descriptor
A simple command-line image descriptor for S3 objects using the Rekognition API.
This is a simple command-line tool which uses the AWS Rekognition API to describe the contents of images in an S3 bucket. It is intended to be used as a quick way to get a sense of the contents of a bucket without having to download the images. As it relies on the Rekognition API, it is limited to JPEG and PNG formats.
It outputs the information as a formatted table if the output is a terminal, or as a JSON object otherwise.
Installation
pip install img_descriptor-23.3.3-py3-none-any.whlUsage
img_descriptor <bucket_name> [<prefix>] [--json]Output example
$ img_descriptor my-bucket folder123
Properties of images in my-bucket with prefix folder123
┏━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┳━━━━━━━━━━┳━━━━━━━━━━━━┳━━━━━━━━━━━━┳━━━━━━━━━━┳━━━━━━━━━━━┳━━━━━━━━━━━━━┓
┃ ┃ ┃ Dominant ┃ ┃ ┃ ┃ ┃
┃ Name ┃ Size ┃ colors ┃ Brightness ┃ Contrast ┃ Sharpness ┃ Labels ┃
┡━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━╇━━━━━━━━━━╇━━━━━━━━━━━━╇━━━━━━━━━━━━╇━━━━━━━━━━╇━━━━━━━━━━━╇━━━━━━━━━━━━━┩
│ folder123/icon.png │ 5.38 kB │ #ffffff │ 100.00 % │ 76.38 % │ 43.60 % │ Text │
│ │ │ #dcdcdc │ │ │ │ │
│ │ │ #2f4f4f │ │ │ │ │
│ │ │ #808080 │ │ │ │ │
│ folder123/icon2020-09-27 00-09-28.png │ 5.53 kB │ #ffffff │ 100.00 % │ 69.93 % │ 40.20 % │ Text │
│ │ │ #dcdcdc │ │ │ │ │
│ │ │ #000000 │ │ │ │ │
│ │ │ #696969 │ │ │ │ │
│ folder123/icon2020-09-27 00-09-47.png │ 4.24 kB │ #4169e1 │ 74.84 % │ 82.97 % │ 48.60 % │ Text, Logo │
│ │ │ #dcdcdc │ │ │ │ │
│ │ │ #00bfff │ │ │ │ │
│ │ │ #6495ed │ │ │ │ │
│ folder123/icon2020-09-27 00-10-21.png │ 6.18 kB │ #87cefa │ 88.39 % │ 75.05 % │ 29.58 % │ Logo, Text │
│ │ │ #ffffff │ │ │ │ │
│ │ │ #dcdcdc │ │ │ │ │
│ │ │ #afeeee │ │ │ │ │
│ folder123/icon2020-09-27 00-10-29.png │ 5.85 kB │ #ffffff │ 100.00 % │ 67.80 % │ 43.23 % │ Logo, Text │
│ │ │ #dcdcdc │ │ │ │ │
│ │ │ #2f4f4f │ │ │ │ │
│ │ │ #87ceeb │ │ │ │ │
└───────────────────────────────────────┴──────────┴────────────┴────────────┴──────────┴───────────┴─────────────┘JSON format
The JSON output is a list of objects, each of which has the following fields:
Name: the S3 key of the imageSize: the size of the image in bytesDominantColors: a list of hex color codes, sorted by dominanceBrightness: a number between 0 and 100, representing the average brightness of the imageContrast: a number between 0 and 100, representing the average contrast of the imageSharpness: a number between 0 and 100, representing the average sharpness of the imageLabels: a list of labels, sorted by confidence