The interactive image shown below has been upsampled by 3x in each direction, raising the 12 megapixel original to 105 megapixels. The image has also been processed to restore high frequency response. 

Use the control buttons or click on the expansion arrows at lower right to make the image full screen. The escape or back key will get you out of full screen. Although full screen is not available from these pages on iOS, pinch to zoom will work on touch sensitive devices. 

For comparison, we also interactively serve the original image, without allowing super-resolution the block below. While the original image also presents a compelling experience, the combination of dynamic zoom past the sensor resolution with intelligent pre-cached super-resolution allows the reader to see and understand features that are otherwise degraded by display limitations.  

The difference between the two images is illustrated by this detail from the super-resolved version:

Maximum resolution detail from the super-resolved image on the left, maximum resolution detail of the original on the right. 

Maximum resolution detail from the super-resolved image on the left, maximum resolution detail of the original on the right. 

Of course, there are limits to how much super-resolution can be achieved. These limits depend on the quality of the original optics and sensor, 3x super-resolution improves high frequency response by 50-100% for high quality originals. Performance is improved when raw image processing and advanced color demosaicing using code adapted to the specific camera model is used. As illustrated here, however, impressive performance is achieved even with blind processing. People in this crowd will definitely be able to find themselves. 

Of course, Aqueti media services allow photographers and art directors to apply diverse upsampling and sharpening filters and to set maximum zoom appropriate to individual images. Aqueti media services also plans to in introduce focus and exposure stacking tools to allow refocus and zoom dependent gamma and color correction. 

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