MNN/tools/evaluation/config.json

{
    "format":"RGB",
    "mean":[
        127.5,
        127.5,
        127.5
    ],
    "normal":[
        0.00784314,
        0.00784314,
        0.00784314
    ],
    "width":224,
    "height":224,
    "imagePath":"path/to/validation_samples/",
    "groundTruthId":"path/to/ILSVRC2012_devkit_t12/lable_id.txt"
}