单词	background scene
释义	background scene 衬景
随便看	gray-level linear transformations gray level mapping gray-level mapping gray level matrix gray level model gray-level morphology gray level noise gray level picture gray-level projection Gray-level Projection gray level quantization gray-level quantization gray level ranking gray-level redundancy gray-level registration gray level resolution gray-level run-length gray levels gray-levels gray level scrambling gray level skeleton gray-level structure gray level symme-try gray level threshold gray-levelthresholding