LED lamp light-emitting state detection method and device

The invention provides an LED lamp light emitting state detection method and device. The method comprises the following steps: acquiring a plurality of sample images; processing the plurality of sample images to obtain a change region feature map of each channel corresponding to each sample image, and obtaining an untransformed feature value corresponding to each sample image according to the change region feature map of each channel corresponding to each sample image; calculating the untransformed feature value corresponding to each sample image to obtain a mean value, and constructing a rotation matrix according to the mean value; performing rotation transformation on the mean value by adopting a rotation matrix to obtain a sample reference characteristic value; acquiring an untransformed feature value of a to-be-detected sample, and performing rotation transformation on the untransformed feature value by adopting the rotation matrix to obtain a feature value of the to-be-detected sample; and finally, calcu