한국인쇄학회지 (Journal of the Korean Graphic Arts Communication Society)
- 제20권1호
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- Pages.28-44
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- 2002
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- 1226-1149(pISSN)
Wavelet 변환 방식을 이용한 인쇄물 평가에 관한 연구
A study on print estimation using wavelet transformation method
초록
Wavelet transformation in image compression is to offer higher image compressibility and high-quality by quantization and entropy encoding. More image quality is good that reconstructed image by wavelet calculation than acquire cosine transform. Therefore, wavelet itself is function if it is wavelet's feature, in this function, do processing applying difference scale and resolution. That is, this is not that fixed resolution has been decided like existent compression way, when it regulated scale, damage goes in pixel and picture looks like break without giving damage entirely in reflex even if magnify or curtail Decoding. Therefore, this paper is in Image that using new wavelet application compression way research that see applies comparing In each image noted this time compressing step by step with circle image compression efficiency recognize. Also, estimated quality pass through by printing of compressed image, investigated compression ratio of most suitable that get print of high quality and elevation of transmission speed.
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