A contrast enhancement method for product packaging images based on adaptive equalisation
Huimin Wang, Chao Gao, Yaning Li · International Journal of Manufacturing Technology and Management · 2025
In order to solve the problems of low peak signal-to-noise ratio and poor product contrast in traditional product packaging image contrast enhancement, a product packaging image contrast enhancement method based on adaptive equalisation is proposed. Build a product packaging image acquisition architecture, obtain packaging images, and use guided filtering methods to denoise the images. Divide the denoised image into two sub images, perform equalisation on the histograms of the sub images within their respective ranges, merge the two sub histograms after equalisation, and obtain the contrast-enhanced product packaging image. The experimental results show that the maximum peak signal-to-noise ratio of the proposed method is 56.8dB, the maximum contrast value of the product packaging image is 0.46, and the maximum enhancement task time is 0.67s. The image contrast enhancement effect is good.