IC image compressing technology based on energy entropy distribution gradient and huffman coding

Remote on-line monitoring of IC manufacture leads requirements on information storage,processing and transmission are rising.A new IC image compressing technology based on energy entropy dis-tribution gradient and Huffman coding is investigated.By gradient operator of energy entropy distribution the characteristic plane of IC image is extracted.Combining with Huffman encoding technology the compressing and describing of IC image’s detail characters under the situation of high compressing ratio is realized.Through experiments of programming and image decompression this technology can obtain stable compress-ing result and clear reconstructed image,thus it facilitates following remote monitoring in IC manufacture.