An image processing system includes an image processing device and an image processing terminal which are connected to each other via a network. The image processing device includes a dye-amount estimating unit that estimates a dye amount of a stained sample stained with a predetermined dye based on a stained sample image obtained by capturing a multiband image of the stained sample, for each pixel of the stained sample image; and a dye-amount transmitting unit that transmits the estimated dye amount of the stained sample to the image processing terminal. The image processing terminal includes a dye-amount receiving unit that receives a dye amount of the stained sample transmitted from the image processing device; a pixel-value calculating unit that calculates a pixel value of a display image of the stained sample by using a predetermined dye-amount correction coefficient based on the received dye amount of the stained sample; and an image display unit that displays a display image of the stained sample based on the calculated pixel value of the display image of the stained sample.