It's difficult to estimate the exact popularity of each image editing software, as the install base can vary depending on the source of the data and the time frame in question. 

However, according to recent surveys and market research, Adobe Photoshop and Lightroom are generally considered to be the most popular image editing software among professionals, while GIMP is popular among the open-source community. 

Other software like Affinity Photo, PaintShop Pro, and Luminar have also gained popularity in recent years as alternatives to Adobe Photoshop. Canva, on the other hand, is more commonly used for graphic design and social media content creation rather than photo editing specifically.
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