Assignment 3 Camera Simulation

Murad Akhter

Date submitted: 11th May 2006

Code emailed: 11th May 2006

Compound Lens Simulator

Description of implementation approach and comments

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Final Images Rendered with 512 samples per pixel

My Implementation

Reference

Telephoto

hw3telephoto_512

Double Gausss

hw3dgauss_512

Wide Angle

hw3wide_512

Fisheye

hw3fisheye_512

Final Images Rendered with 4 samples per pixel

My Implementation

Reference

Telephoto

hw3telephoto_4

Double Gausss

hw3dgauss_4

Wide Angle

hw3wide_4

Fisheye

hw3fisheye_4

Experiment with Exposure

Image with aperture full open

Image with half radius aperture

Observation and Explanation

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Autofocus Simulation

Description of implementation approach and comments

......

Final Images Rendered with 512 samples per pixel

Adjusted film distance

My Implementation

Reference

Double Gausss 1

mm

blank300x300

hw3afdgauss_closeup

Double Gausss 2

mm

blank300x300

hw3afdgauss_bg

Telephoto

mm

blank300x300

hw3aftelephoto

Extras

Stopping Down the Telephoto Lens

Image with aperture full open

Image with quarter diameter aperture

Exposure increased by 4-stops in Photoshop

I reduced the aperture to 1/4 th its original value to observe a 4-stop change in exposure. Increasing the exposure in Photoshop gave an image that seemed similar to the original. The reduced aperture size causes the images to be noisier since fewer rays end up making it to the scene from the camera. This is easy to see when comparing the Photoshop image with the original image on the leftmost column.

...... Go ahead and drop in any other cool images you created here .....

MuradAkhter/Assignment3 (last edited 2006-05-13 08:38:13 by MuradAkhter)