![]() ![]() Given the above result, I dug a little deeper and tested DxO on images with in-camera sharpening set to OFF. The 50 x 50 pixel crops below are 2 times (pixel) enlarged via nearest neighbor interpolation. It is very easy to create a Photoshop action if you want to apply this type of sharpening to all your images. The minor differences in the roof tiles are nearly invisible at 100%. However, in this image, this was very similar to a simple Photoshop "Unsharp Mask" with Amount 50%, Radius 1.7 (not my usual preference) and Threshold of 1. Low in-camera SharpeningÄxO Optics Pro definitely improved image sharpness. Moreover, once you have edited your image, you will sharpen the image differently for the version you want to post on your website and the version you will print out as an 8" x 10" for instance. So it is better to apply a levels adjustment before sharpening. Levels adjustments for instance increase overall contrast and will increase the visibility of sharpening halos. The correct digital imaging workflow is to apply any additional sharpening at the end of the image processing, after noise removal, levels adjustments, any resampling, and before compression (if JPEG is your final output). The "NORMAL" and "HIGH" settings tend to create difficult to remove sharpening halos. As we will see in a moment, it is not always straightforward to sharpen JPEG images shot with sharpening "OFF" so that they look as good as those shot with sharpening set to "LOW". If you are shooting in JPEG, I recommend you shoot with in-camera sharpening set to "LOW". If you are shooting in RAW, you can "undo" the in-camera sharpening. Software cannot create detail that was not originally captured by sensor. Software is of course unable to create detail beyond the camera's resolution, it will only help to bring out captured detail by increasing the perceived sharpness. Software sharpness creates an "optical illusion" of sharpness by making the edges more contrasty, compensating for some of the softness caused by sensors with a color filter array. Optical sharpness is determined by the quality of the lens and the sensor. There are two types of sharpness and it is important not to confuse them. Correction #1 - Blur A word about blur, sharpness, sharpening and workflow ![]()
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