The invention discloses a
trademark graphic similarity comparison method. The
trademark graphic similarity comparison method includes: firstly determining whether an image to be inspected meets an image specification requirement of a
trademark registration application, and correspondingly adjusting the image to be inspected by performing
image storage format converting, stretching, compression, enlargement, reduction,
cutting, and rotation. The difference between the pre-processed image and the trademark graphic
database in the image specification is greatly reduced, which facilitates featureextraction and comparison, further reduces the amount of calculation, and brings great convenience to subsequent steps; global inter-scale feature window matching, local similar region feature windowmatching and matching for using a
spatial transformation model to filter the scale-space consistency are applied to
graphics retrieval to form a efficient, convenient and accurate trademark graphic similarity comparison method. The trademark graphic similarity comparison method can perform trademark graphic retrieval, is fast in speed, is low in omission ratio, and is good in robustness.