eInk Radiator Image Source: Image

Generates an image from an existing image.

image generate --config config.json --height 300 --width 400

Configuration

The configuration is the image source, which must be a publically accessible URL, the scaling algorithm (see below) and the background color (if required).

field	default	required	description
source		Yes	The URL to the image
scale		Yes	Algorithm to use when resizing the image to the desired resolution
background.color	white	No	The color of the background (used when contained images are a different resolution ratio)

Possible options for scale:

• resize - Resize the image to fit the desired resolution. May lead to distortions.
• contain - Resize the image so the whole image fits inside the new resolution. May show some background, which will use the background.color configuration.
• cover - Resize the image so the smallest dimension fits inside the new resolution frame. May crop out some of the original image.

Examples

A resized image

---
source: https://github.com/petewall/eink-radiator-image-source-image/raw/main/test/dog1.jpg
scale: resize

A covered image

---
source: https://github.com/petewall/eink-radiator-image-source-image/raw/main/test/dog3.jpg
scale: cover

A contained image

{
    "source": "https://github.com/petewall/eink-radiator-image-source-image/raw/main/test/dog2.jpg",
    "scale": "contain",
    "background": {
        "color": "green"
    }
}