Podcast
Questions and Answers
Which year did Nicéphore Niépce fix an image on a support covered with a sort of tar?
Which year did Nicéphore Niépce fix an image on a support covered with a sort of tar?
- 1861
- 1827 (correct)
- 1957
- 1969
Who replaced the tar with silver iodide in the early days of photography?
Who replaced the tar with silver iodide in the early days of photography?
Louis Daguerre
In what year was the first digitized photo created?
In what year was the first digitized photo created?
- 1969
- 1957 (correct)
- 1827
- 1861
Who took the first color photograph in 1861?
Who took the first color photograph in 1861?
What did the first color photograph represent?
What did the first color photograph represent?
Who invented the CCD sensor?
Who invented the CCD sensor?
What does the CCD sensor transform into a digital image?
What does the CCD sensor transform into a digital image?
When was the first digital camera created?
When was the first digital camera created?
What type of images did the first digital camera record?
What type of images did the first digital camera record?
In what year did the first camera phones appear?
In what year did the first camera phones appear?
What is revolutionizing the constructors photophones?
What is revolutionizing the constructors photophones?
What is the name of the mode that adapts the shooting parameters according to the situation and type of composition?
What is the name of the mode that adapts the shooting parameters according to the situation and type of composition?
What does the iPhone 14 Pro inaugurate?
What does the iPhone 14 Pro inaugurate?
Which chinese manufacturer surprises everyone with the Nex S, a smartphone with a futuristic design?
Which chinese manufacturer surprises everyone with the Nex S, a smartphone with a futuristic design?
Complete the following sentence: An appareil photo est une _____ faite pour capturer la lumière, la transformer en une photo numérique ( fichier numérique), et la garder en mémoire sur un support adapté.
Complete the following sentence: An appareil photo est une _____ faite pour capturer la lumière, la transformer en une photo numérique ( fichier numérique), et la garder en mémoire sur un support adapté.
Les rayons lumineux entrent dans l'appareil photographique par l'_____ et sont projetés sur le capteur.
Les rayons lumineux entrent dans l'appareil photographique par l'_____ et sont projetés sur le capteur.
La mesure de l'intensité lumineuse est transformée en données numériques avant d'être stockées dans la _____ mémoire de l'appareil.
La mesure de l'intensité lumineuse est transformée en données numériques avant d'être stockées dans la _____ mémoire de l'appareil.
Ces données permettent l'affichage de l'image sur un écran _____.
Ces données permettent l'affichage de l'image sur un écran _____.
What is the essential role of the sensor?
What is the essential role of the sensor?
Le _____ est un élément sensible du capteur.
Le _____ est un élément sensible du capteur.
What do photosites transform light into?
What do photosites transform light into?
Flashcards
Who was James Clerk Maxwell?
Who was James Clerk Maxwell?
The person who presented the first true color photograph.
What does a CCD (Capteur) do?
What does a CCD (Capteur) do?
It transforms what the eye sees into a digital image.
What is digital photography?
What is digital photography?
The capture, transformation, and storage onto a suitable medium.
What do sensors do in photography?
What do sensors do in photography?
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What is a photosite?
What is a photosite?
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What is a colored filter?
What is a colored filter?
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What colors compose a photosite?
What colors compose a photosite?
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What happens to blue light in a red filter?
What happens to blue light in a red filter?
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Study Notes
- The module focuses on digital photography
- The module will explore discovering digital photography, defining a digital image and understanding its encodings, and the essential data of a digital image
Session 1: Discovering Digital Photography
State of Affairs:
- A brainstorming session about photography will take place
Historical Landmarks:
- 1827: Nicéphore Niépce fixed an image on a coated support, later replaced with silver iodide, leading to silver photography
- 1861: Thomas Sutton and James Clerk Maxwell took the first color photograph
- 1957: Russell Kirsh digitized a photo
- 1969: Willard Boyle and George E. Smith invented the CCD sensor, which revolutionizes photography by transforming the view into a digital image
- 1975: The first digital camera, using a CCD sensor, was created, it recorded black and white images on tapes
- 2000: Camera phones emerged, popularizing digital photography
Key Figures and Inventions:
- A Scottish physicist and mathematician presented the first true color photograph
- A chemical compound that paved the way for silver photography
- A year when the first photograph was digitized
- A component that transforms what is perceived by the eye into a digital image
Current Trends:
- AI is being used to improve photophones by adjusting settings for optimal image capture
- Stabilization is improving to reduce blurred images
Statistics
- An estimated 700 to 759 billion images are on the Internet, representing only 6% of the total taken
Definition of Digital Photography:
- Digital photography experienced growth since the 1990s due to high-quality sensors
- The number of photos taken globally exploded, from 600 billion in 2010 to 1.6 trillion in 2023
- Digital photography replaces silver photography
- Cameras are boxes that capture light, transform it into digital photos, and store photos on supports
The Essential Role of the Sensor:
- Sensors are made of photosites
- Each photosite creates a point or pixel in the final image
- The photosite converts light energy into electrical energy using the properties of the semiconductor, often silicon
- The component collects a number of electrons proportional to the amount of light received, not the color
- Color filters (Bayer filters) are necessary to capture color information
- Each photosite has filters, filters only allow the light component of their color to pass
- The human eye is more sensitive to green, one photosite contains one red filter, one blue filter, and two green filters
- Sensors use photosites to measure the intensity of light hitting its surface, these are covered in red, green or blue color filters
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