palette
Tiny HTTP API returning the RGB values used in an image.
Works with GIF, JPEG and PNG.
Usage
Usage of ./pal:
-listen string
host:port to use (default ":8080")
-max_size int
maximum size of image to process in bytes (default 1000000)
-r_timeout duration
read timeout in seconds (default 1m0s)
-w_timeout duration
write timeout in seconds (default 1m0s)
The API
Return all colours used in an image:
curl --data-binary "@/path/to/image.png" "localhost:8080/"Filter out colours that take up less than n pixels:
curl --data-binary "@/path/to/image.png" "localhost:8080/?min=100"Output:
[{"red":150,"green":206,"blue":180},{"red":255,"green":238,"blue":173},{"red":255,"green":111,"blue":105},{"red":255,"green":204,"blue":92},{"red":136,"green":216,"blue":176}]Pretty print output:
curl --data-binary "@/path/to/image.png" "localhost:8080/?pretty=true"Output:
[
{
"red": 136,
"green": 216,
"blue": 176
},
{
"red": 150,
"green": 206,
"blue": 180
},
{
"red": 255,
"green": 238,
"blue": 173
},
{
"red": 255,
"green": 111,
"blue": 105
},
{
"red": 255,
"green": 204,
"blue": 92
}
]