The invention relates to an image dynamic compression system, which comprises: receiving a plurality of shots of a plurality of images； receiving pixels of a plurality of images and outputting a plurality of pixel circuits of the cut images； performing two-dimensional operations on the plurality of cut images a gradient detection circuit for two-dimensional gradient components； a gray-scale identification circuit for performing gray-scale determination on a plurality of slitting pictures and outputting JND values； and a prediction circuit for calculating three predicted values based on the two-dimensional gradient components and JND values； A dynamic power circuit corresponding to a plurality of preamble values of different electrical powers and data compression rates； and a Columbus-encoded encoding circuit for a plurality of preamble values. The invention further includes an image dynamic compression method.本發明係關於一種影像動態壓縮系統，包括：接收多數個影像的多數個鏡頭；接收多數個影像的像素並輸出多數個分切畫面的像素電路；對多數個分切畫面進行二維運算而獲得二維梯度分量的梯度偵測電路；對多數個分切畫面進行灰階判斷而輸出JND值的灰階辨識電路；依據二維梯度分量與JND值計算出三個預測值的預測電路；包括有分別對應不同的電功率以及資料壓縮率之多數個前文數值的一動態功率電路；以及對多數個前文數值進行哥倫布編碼的編碼電路。本發明更包括一種影像動態壓縮方法。
