Color Science RSS

AI, Color Science, Science, Technik -

Apple with Neural 3D Engine With FaceLit, Apple proposes a neural 3D engine for face relighting. The engine should Generate 3D faces that can be rendered in various custom lighting conditions and views. The engine only needs 2D images as input. The engine relies on standard pose and lighting estimators. With these estimates, the Phong reflection model is integrated into the neural volume rendering system. The model learns how to generate the shape and material properties of a face in this way. This is also the basis for generating photorealistic facial images with multiview 3D and lighting consistency. Apple confidently...

Read more

AI, Color Grading, Color Science, HDR, Science -

Tone mapping operators with AI High Dynamic Range (HDR) is fast becoming the video format of choice for content providers, albeit not quite as quickly as thought. Standard Dynamic Range (SDR) displays still dominate the market. Therefore, efficient ways must be found to convert HDR content to SDR format, a process known as tone mapping. There are already numerous tone mapping operators (TMO for short), but these do not always lead to a usable result. Recently, many "new" TMOs based on deep learning approaches have been proposed. However, the main challenge in training such deep learning networks is the lack...

Read more

Color Grading, Color Science -

Respect The Film Negatives As a former analogue filmmaker, I learned to "appreciate the negative". I've always admired the evolution of analog stocks and I still do. It is remarkable what results can be achieved during development. There were often serious differences in the results of the same stocks when they were developed by different service providers. There are many reasons for this, often simply cutting back on chemistry resulted in "very thin" results. This is particularly reflected in the colors and the color step approach. Nevertheless, after a good scan and a proper grading, you could always achieve very...

Read more

Color Grading, Color Science, DaVinci Resolve, Gamut -

What is Rec. 2020 really? When it comes to HDR, there is no getting around Rec. 2020 as the color space to be used, that is clear as far as it goes. It is also clear that there is no display that can actually reproduce this color space. So far nothing new. HDR-capable displays, such as consumer OLED TVs, can only display DCI-P3. However, this gamut should be contained in a Rec. 2020 container, which is also the first thing our students learn in the HDR master classes. In order to better understand this connection, we want to clear up...

Read more

Color Science, HDR, Science, Technik -

With exception of the Arri Alexa 35, all cine cameras still only have a hardware-based (sensor) dynamic range (DR) of around 13 stops. However, using the log profiles of the camera manufacturers, it is possible to record up to 15 stops DR. However, this could change in the future, because Thomas Wocial, Konstantin D. Stefanov, William E. Martin, John R. Barnes and Hugh RA Jones have published a paper on the possibility of a new readout method for CMOS image sensors (CIS) entitled "A Method to Achieve High Dynamic Range in a CMOS Image Sensor Using Interleaved Row Readout". The...

Read more