scikit-image/scikit-image — pull request #403 by blink1073 (2012-12-23 16:57:21+00:00)
Title: BUG: Not all plugins would pass the adapthist test

Using the freeimage plugin (as Travis does), produced a float64 test_img, while others produced a float32 test image. I normalized to float64 and adjusted the expected results.