Auto Crop

Detect and remove video letterbox.

<?xml version="1.0"?>
<query>
    <userid>[UserID]</userid> <!-- required-->
    <userkey>[UserKey]</userkey> <!-- required-->
    <action>[Action]</action> <!-- required-->
    <format>
        <auto_crop>
            <enable>[yes|no]</enable>
            <crop_type>[CropType]</crop_type>
            <limit>[Detection]</limit>
            <round>[CropRound]</round>
        </auto_crop>
    </format>
</query>
{
    "query": {
        "userid": "[UserID]",
        "userkey": "[UserKey]",
        "action": "[Action]",
        "format": {
            "auto_crop": {
                "enable": "[yes|no]",
                "crop_type": "[CropType]",
                "limit": "[Detection]",
                "round": "[CropRound]"
            }
        }
    }
}
ParameterDescriptionAllowed ValuesDefault Value
enableEnable auto-cropping.yes, nono
crop_typeSpecify cropping type.resize - crop letterbox, then crop to keep width/height ratio then re-scaling to fit output size.
stretch - crop letterbox, then re-scaling without saving of width/heigth ratio to fit output size
crop - only letterbox cropping
resize
limitHigher black value threshold.Positive integer number from 0 to 128. Value greater than 128 will be changed to 128.

0 – Pixel must be absolutely black to be classified as black.

128 – The lightest pixels would be classified as black.
24
roundThe value which the width/height should be divisible by.Positive integer number.16

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Note for crop_type

If <crop_type /> set to crop and specified for output then video will be re-scaled as though <crop_type /> was set to stretch.

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Note

Auto cropping will be ignored if <crop_* /> parameters are specified.