Image processing method and image acquisition device

The invention provides an image processing method and an image acquisition device. The image processing method includes the following steps: carrying out face recognition on the spliced image so as togenerate a plurality of corresponding recognition boxes at the positions where the plurality of faces are recognized;when it is determined that at least one recognition box exists at the stitching position in the stitched image, executing a stitching position adjustment program. The splicing position adjustment program comprises the following steps: calculating a box distance between every two adjacent identification boxes in all the identification boxes of a spliced image, and taking out the maximum box distance as a calculated distance; finding out two identification square frames which areclamped with each other to calculate a distance, and calculating a central position between the two identification square frames; calculating the comparison distance between the center position and each splicing position, and