Term | Definition |
| Bounding box | The area that constrains the size of an image. Example: 400 pixels wide by 200 pixels high. |
ITS | Image Transformation Service. |
ITS Storage | The image receptacle hosted by PBS. |
CDN | Content delivery network or content distribution network (CDN). A system of computers containing copies of data placed at various nodes of a network. |
Decorator | A series of parameters appended to the end of a url string to enable resize functionality. Example: .resize.380x212.jpg |
| .crop | The url indicator that tells ITS a resize is being requested and to crop the image according to the bounding box dimensions. The crop feature crops an image from the center of the image. Learn more |
| .focalcrop | The url indicator that tells ITS an image should be resized and cropped from an assigned focal point. Learn more |
.height | The numerical value for the desired height of the resized image. Example (height is in bold): resize.400x100.jpg |
.jpg / .png / webp | The file extensions supported by ITS. The file extension should be written after the original image path and at the end of the decorator. Example (in bold): http://image.pbs.org/demo/filename.jpg.resize.380x212.jpg |
Managed Image | An image hosted by ITS. |
Mezzanine Image | A very large, high resolution image that is at least 1920 pixels wide x 1080 pixels high with a 16:9 ratio. |
Namespace | A logical grouping of image files and where those files are located. Must be requested from a PBS User. |
.resize | The url indicator that tells ITS a resize is being requested and to keep the image aspect ratio intact. Example: resize.400x100.jpg |
.width | The numerical value for the desired width of the resized image. Example (width is in bold): resize.400x100.jpg |