Have you ever noticed that you see much more details when looking at a scene by eye than when seeing a photo of the same scene? If not, it’s just because it’s too common to be noticed. Even having, physically, a lower dynamic range than a camera, human eyes see more.
Almalence Dynamic Range Optimizer optimizes the usage of dynamic range of 8-bit images to make the most of image details visible. DRO uses a technique similar to tone mapping, exploiting the peculiarities of human vision. DRO can be used either for optimal conversion of RAW images into 8-bit RGB/YUV images or for improvement of existing 8-bit images.
Same data acquired by the camera, different usage of dynamic range. Left: standard image produced by the camera. Right: result of Almalence DRO processing, close to what human eye would see. Details in shadows are revealed due to optimization of dynamic range usage. Noise is not amplified.
DRO is easy-to-integrate, extremely fast solution that automatically improves the images in 100% cases and can substitute HDR in most of cases.
Comparing to existing solutions aiming to provide similar improvements of digital imaging, Almalence DRO:
- is faster by the order of magnitude, which allows to use it in mobile devices, for both still images and video
- provides better quality, mainly due to absence of noise amplification in shadows
- improves both shadows and highlights
Left: standard image, right: DRO processed (optimized) image. Details in both shadows and highlights are revealed due to optimization of dynamic range usage.
DRO can be integrated in ISP, camera drivers or applications.
Some comparison examples are available on our site: DRO_examples_Almalence_site.zip (33 MB)
Demo application is available upon request.
Your camera captures the details, HDRAW makes them visible
The maximal dynamic range – the contrast between the brightest point and the darkest one – of a JPEG image is about 4,000 times lower than the range seen by a human eye. A camera captures several times higher dynamic range than one available with JPEG. This means that the range is either cut or squeezed in JPEG photos, therefore in high contrast scenes the details in highlights and shadows are lost, as well as the details of low-contrast objects. RAW images still contain the full dynamic range captured by the camera.
HDRAW utilizes Tone Mapping technique, allowing to preserve the details while fitting high dynamic range image into the limited dynamic range of JPEG or any other 8-bit format. Exploiting the properties of the human vision, HDRAW makes the picture and color details visible in all areas of the photo from the darkest to the brightest one.
HDRAW is a single-image HDR tool that utilizes higher dynamic range available in RAW.
RAW made easy
While usual RAW development process is a sophisticated task that requires adjusting a lot of parameters in a RAW converter, HDRAW is intended to produce rich detail images virtually in one click (ok, three clicks actually). It still allows you to adjust tone mapping parameters, but the standard presets are enough in most cases.
Along with HDRAW application we’ve launched HDRAW.net community for photo sharing, discussions, etc.
HDRAW is available at introductory price of $14.99. Registered users of PhotoAcute can use HDRAW for free – HDRAW accepts PhotoAcute 3 registration codes.
A little improvement in PhotoAcute user interface: once you have fused a HDR image, you are automatically directed to Tone Mapping. This makes PhotoAcute HDR workflow a bit smoother. Tone Mapping functionality is still under development, though.