Most modern cameras now have the ability to save their pictures in a RAW file format instead of the typical JPG file to capture exactly what the sensor “sees”. What does it mean to look at a “straight from camera” RAW photo file? How do RAW processors like Lightroom change the files after they’re loaded, and are RAW files actually images? Matthew Miller takes the reader through the RAW process on the PetaPixel blog.
There is a tool called dcraw which reads various RAW file types and extracts pixel data from them — it’s actually the original code at the very bottom of a lot of open source and even commercial RAW conversion software.
I have a RAW file from my camera, and I’ve used dcraw in a mode which tells it to create an image using literal, unscaled 16-bit values from the file. I converted that to an 8-bit JPEG for sharing, using perceptual gamma (and scaled down for upload).
We are angry, frustrated, and in pain because of the violence and murder of Black people by the police because of racism. We are in the fight AGAINST RACISM. George Floyd was murdered, his life stolen. The Adafruit teams have specific actions we’ve done, are doing, and will do together as a company and culture. We are asking the Adafruit community to get involved and share what you are doing. The Adafruit teams will not settle for a hash tag, a Tweet, or an icon change. We will work on real change, and that requires real action and real work together. That is what we will do each day, each month, each year – we will hold ourselves accountable and publish our collective efforts, partnerships, activism, donations, openly and publicly. Our blog and social media platforms will be utilized in actionable ways. Join us and the anti-racist efforts working to end police brutality, reform the criminal justice system, and dismantle the many other forms of systemic racism at work in this country, read more @ adafruit.com/blacklivesmatter
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.