Digital Photography and Imaging | Week 6

11.05.2023 (Week 6)
Caitlin Ong Lynn Dee / 0343801 / Bachelor of Design (Honour) in Creative Media
Digital Photography and Imaging
Week 6 Blog 


LECTURE

Digital Photography
Originally the Digital Photography Lecture is supposed to be in Week 5 but was changed due to Week 5 being a public holiday. we learn about the exposure setting of a camera, the inner workings of a camera, the Len perspective, and comparison between a DSLR and a smartphone.

Exposure Setting

Exposure:
In photography, exposure is the amount of light which reaches your camera sensor or film.

Fig 1.1 Exposure Comparision

The main parts of the camera: 
Camera body: Shutter, Image sensor, LCD screen
Camera lens: Aperture/ Iris
 The camera body is a light proof box.


Fig 1.2 Camera Diagram


Iris:
  • Iris/Aperture is controlling the flow of light entering the lens.
  • Iris/Aperture is measured by f-stop, indicated by sequence of f-number: f/1, f/1.4, f/2 , f/ 2.8, f/ 4, f/ 5.6, f/ 8, f/ 11, f/ 16, f/22 , f/32..
  • The lower the f-number, the larger the lens opening.

Fig 1.3 Camera Iris


Fig 1.4 F-Numbers



Shutter:
  • The shutter is a small plastic sheet that opens and closes to allow light onto the film or prevent light from reaching the film. 
  • Shutter Speed: Shutter speed is measured in seconds: 1/1000 s,1/500 s,1/250 s,1/125 s,1/60 s,1/30 s,1/15 s,1/8 s,1/4 s,1/2 s,1 s, 2 s, 3 s

Fig 1.5 Camera Shutter

Fig 1.6 Shutter Speed Comparision



ISO:
  • Originally referred to the sensitivity of film—it's "light gathering" ability. For digital photography, ISO refers to the sensitivity—the signal gain—of the camera's sensor.
  • The common ISO camera settings are: 100, 200, 400, 640, 800, 1600, 3200, 6400….
  • The lower the number of ISO the less sensitive your camera is to light and the finer the grain.

Fig 1.7 ISO: Brightness Comparision

Fig 1.8 ISO: Grain Comparision


Lens Perspective
The are wide angle lens, standard lens and tele lens. Appropriate lens provided desire framing; lens choice affects angle of view. Different lenses are designed for different for different purposes. Lenses can be categorized by FOCAL LENGTH.

FOCAL LENGTH: The shorter the focal length, the wider the angle of view and vice-versa. 
FOCAL LENGTH: Focal length is the measurement (in millimeters)


TUTORIAL

Video 1: Photography basic in 10 minutes by David Manning


Video 2: creative Product Photography at Home - Beginner to Pro! by Chris Pieta


Video 3: Shooting a Bottle with ONE Continuous Light and a Smartphone by figandlight



PRACTICAL

Instruction

Part 1:



Part 2:


Recoloring Black & White 

Part 1
This exercise is where we color a black & white photo. For Part 1 Mr. Yusoff provided us a black & white picture in Google drive, and we have to follow a step-by-step video on how to do it.
  1. Use the brush tool to color the face. 
  2. Use the blending mode to make a color blend with the textures seamlessly. 
  3. This method is repeated from all body parts. 
  4. Finalize the colors by adjusting the saturation.
Fig 2.l Original Photo (13/05/2023)

Fig 2.2 Step 1: Color the face using the Brush Tool (13/05/2023)

Fig 2.3 Step 2: Use Blending Mode, Overlay (13/05/2023)

Fig 2.4 Step 3: Repeat the process for all body parts (13/05/2023)

Fig 2.5 Step 3: Repeat the process for all body parts (13/05/2023)

Fig 2.6 Step 4: Fill the entire image with the any color (13/05/2023)

Fig 2.7 Step 5: Mask the background (13/05/2023)

Fig 2.8 Step 6: Masking Result (13/05/2023)

Fig 2.9 Step 7: Decrease the Opacity of the background (13/05/2023)

Fig 2.10 Step 8: Adjust the Saturation to finalize the colors (13?05/2023)


Fig 2.11 Initial Color (13/05/2023)

Fig 2.12 Final Color (13/05/2023)

Part 2
In part 2, we have to sample the skin color and the hair color from other photos, to color the black and white photo. The black and with photo along with the skin and hair reference photos are provided in google drive. We have watched a step-by-step video from Mr. Yusoff.

  1. For the skin color we have to cut out the part of the reference's face and copy it to the black and white photo. 
  2. The sample size of the Eyedropper Tool needs to be 5 by 5 Average. Use the Eyedropper tool to pick up Highlight, Midtone and Shadow and use the Brush Tool to paint it over to create a set of color scheme. The process is respected for the hair reference. 
  3. Use the Quick Selection Tool to roughly select the hair and refine it by pressing the layer mask and then press the Select & Mask button.
  4.  Select the Overlay option in Viewing Mode.
  5.  Use the Refine Edge Brush Tool to brush over the edges.
  6.  After refining it select the Output to: Layer Mask. 
  7. Create a new Solid Color layer and use the Color Picker to choose the hair color.
  8. Drag and drop the hair layer mask to Solid Color layer to replace the layer mask, 
  9. Select Blending Mode to pick a preferable blending option. 
  10. The Process is repeated for all body parts. 
  11. For the Background add Layer mask to new Solid Color layer and then choose a Blending Mode option
Fig 3.1 Original Photo with Skin and Hair Reference (14/05/2023)

In my first attempt the process I go through was not instructed in the video, and the skin lack any shadow, so I recolor it and I follow the same process as the video. 

Fig 3.2 First Attempt Color (14/05/2023)

Fig 3.3 Step 1: Sample color from the Skin Reference (14/05/2023)


Fig 3.4 Step 2: Sample color from the Hair Reference (14/05/2023)

Fig 3.5 Step 3: Use Quick Selection Tool to select the hair. (14/05/2023)

Fig 3.6 Step 4: Under "Select & Mask" mode, Refined the hair. (14/05/2023)

Fig 3.7 Step 5: Create Solid Color Layer and put Layer mask. (14/05/2023) 

Fig 3.8 Step 6: Use Blending Mode(14/05/2023)

Fig 3.9 Step 7: Repeat the process for all body parts.(14/05/2023)

Fig 3.10 Step 8: Mask the background (14/05/2023)

Fig 3.11 Step 9: Refine Mask (14/05/2023)

Fig 3.12 Step 10: Create Solid Color Layer and put Layer mask (14/05/2023)


Fig 3.13 Final Color (14/05/2023)


Part 3
In Part 3 We have to repeat the process from part 2 but this time have to find skin and hair reference from the internet. The Black and White photo has been provided.


Fig 4.1 Original Photo with Skin and Hair Reference (14/05/2023)

Fig 4.2 Initial Color (14/05/2023)

Fig 4.2 Final Color (14/05/2023)



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