Two Methods for Calculating Stamping Area Ratio of Tipping Paper

Photoshop software and ImageJ software were used to calculate the stamping area ratio on tipping paper, and the accuracy, repeatability and application range of the two methods were compared. The results showed that: 1) For most kinds of tipping paper, the stamping area ratio could be calculated accurately by either of the two methods with an error of less than 0.62% in addition to low cost and good repeatability; 2) Photoshop method was more accurate and widely available, while ImageJ method was more efficient.