Using Adobe Photoshop to Quantify Rock Textures

Key words: 
• image analysis /
• Photoshop quantification /
• rock texture

Abstract: Commonly used methods to quantify or semiquantify rock textures are estimating through naked eyes, or through visual comparison charts, dotcounting, and image analyses. However, using Adobe Photoshop is better than any other methods. Based on its strong ability of selecting, Photoshop can tell the pixels of each interested texture constituents, and the ratios of them to the total pixel of each whole image equal to the area percents of those constituents. Therefore, using Adobe Photoshop, we can get most of the rock texture data so that the diageneses and porosity evolution history could possibly be recovered. An example from Northeastern Sichuan Basin is studied, which proves the applicability and the accuracy of this method.