Non-Destructive Image Editing - Questionnaire 1.

Questionnaire #1

1. Define (NDI) Non-Destructive Imaging?

Non-Destructive Imaging (or editing) is simply the ability to alter an electronic file of a photograph in a way that allows for further adjustments/changes once the file has been saved, closed and re-opened. It does not affect the actual pixels recorded.

2. List four challenges introduced by digital photography.

a) The ability to create lots of photos, very quickly.

b) Increased File Storage.

c) The need to adjust a single source image in a number of ways.

d) The need to adjust multiple images in the same way.

3. What is meant by a Derivative File?

Put simply, it is a direct copy of the original source file whether with or without any adjustments made. It is also classified as a Fixed Rendering.

4. What are two problems with using “Save As…” to create derivative files?

a) It creates another version of the original file.

b) The creation of multiple versions can cause confusion & file-naming issues.

5. What is (SRNDI) Self Referenced Non-Destructive Imaging?

It is a way to make adjustments to the original image. The software creates a list of instructions that are read by the rendering engine to display an adjusted version of the original photograph.

6. List two advantages of SRNDI over the use of Derivative files.

a) A list of instructions is much smaller in file size when compared to the derivative file equivalent.

b) The list of instructions can be modified and keeps the image from becoming fixed

7. Define (PIE) Parametric Image Editing.

Parametric Image Editing is the editing of images by way of creating instructions or parameters. The software’s rendering engine creates a preview of how the image/photograph will look according to a list of instructions that is developed “behind the scenes” as you go about your adjustments/changes.

8. What is the difference between a Live Rendering and Fixed Rendering?

LIVE – means the image can still be adjusted over and over again (still a layered rendering software file)

FIXED – means an adjusted image has been finalized (layers flattened, compressed, exported printed)

9. List three advantages of NDI.

a) Multiple photo manipulation: Thanks to Parametric Image Editing makes it easy to apply adjustments made to one image to a number of, or all remaining images, very quickly.

b) Unlimited undo’s: Since all image adjustments are saved simply as a list of instructions, it is easy to then change those instructions time and time again to create a different interpretation of the original image. Any adjustments can also usually be reset and discarded so as to start all over again.

c) Saves on file-space: With modern computers able to create renderings of an image quickly, the user can build a library of images that consist largely of the source file and its relating list of instructions as a rendered preview of what it looks like with any adjustments.



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