Non Destructive Image Editing – Part 3

	Imaging 2
h	Non-Destructive Image Editing - 3
Name	Paul Livingston
	§       This is a formative assessment instrument §       You must be rated ‘Competent’ in this assessment item.
Instructions	Read the article provided – ‘Non-Destructive Imaging: An Evolution of Rendering Technology’  by Peter Krogh - and answer the following questions in the space provided.
	Part III – Catalogue-Based Non-Destructive Imaging What model does cataloguing software use ? Library model                                                                                                                                            Where are the images stored in a catalogue based system ? Single folder; multiple folders; or across multiple hard drives                                                                      Where does the catalogue get its initial information about the files ? From the metadata                                                                                                                                   Where does the cataloguing software store this information ? Stores the information in a central location                                                                                       What is the main organising principle of Browser based systems ? File browser cache info in the DB for quick access but the information is in the original file. The model is known as the truth is in the file.                                                                                 How do cataloguing systems organise their images ? The most up to date info is maintained in the catalogue database.  When photos are first indexed – a record is created for each photo  file containing the info about it; a preview of the image is created  and stored and can be accessed even if the file is not available;  and any metadata in the file is harvested and associated with the  photo in the catalogue and the metadata is parsed into groups  (creator name, keywords, ratings, or locations).           How does a cataloguing system make changes to an image ? Adding information like keyword just makes a note in the catalogue  record for the photo. When you make a rendering change to an  image with catalogue-based PIE software, you are changing the   information in the catalogue and in the preview that gets cached,  but not necessarily touching the original.                                                                                                        Can other programs see these changes ?                             No because it is stored in the catalogue and not with the original file. How does a cataloguing system make changes to an image available to other programs ?  It can be done if derivative files are made (JPG, TIFF, PSD OR DNG) can show the adjusted images in  way accessible to nearly any program. List 5 advantages of Cataloguing based PIE software ? Associates information with one original. Info created, stored & cross referenced in one place. Multiple rendering can be attached to a single source image and managed in the same environment. Saves space, time and confusion.             Creates useful groups of scattered images. Cataloguing programs organise by metadata, proximity in the directory structure is largely irrelevant.                      Works with offline images. Can access photos not connected to the computer.                                                                                                                                                 Eases backup and restoration tasks. It can be backed up early in the process because the original is never changed.                                                                      Generates multiple output types from a single source.                                           Give two examples of software that combine Image Cataloguing and Editing functions ? Adobe Photoshop Lightroom                                                                                          Apple Aperture

Creating a composition using Smart Objects

This was a fun exercise since everytime I tried to use smart objects before I always got confused not knowing which image to work on. Now I know. 

The Place command was another thing that was a puzzle. It does just what it says, places the selected image from file into the the PS document you are working on. Where as File>Open As a Smart Object opens the file in a new window. 

Double clicking on the Smart Object layer opens the original file in a separate document that you can then make adjustment upon. 

If the same image has been used for various layers of Smart Objects all the layers can be modified at the same time. 

Smart Objects images can be replaced by another image and all the transformations will stay the same on the new image. 

Exercise 6 Non Destructive Editing

	Imaging 2
f	Exercise 6 – Non-Destructive Editing
Names
	§       This is a formative assessment instrument §       You must be rated ‘Competent’ in this assessment item.
Preamble	This exercise is aimed at giving practice in applying the tools and techniques used for non-destructive editing.  All the operations used to carry out the following exercise should be done in a non-destructive manner. Precise instructions are not given, just the tasks that must be performed. If you do not know how to carry out the tasks non-destructively then ask the teacher for help.
Questions	1.     Open the image NDE-1.tif in Adobe Camera Raw and do the following :- i.       Use the Straighten tool to straighten and crop the image. ii.      Adjust the colour temperature. iii.     Adjust the Basic controls to give good rendition of the view outside the lighthouse. iv.    Use the HSL/Greyscale control panel to make the orange rocks and foliage slightly more saturated. v.     Use the Local Adjustment Brush to lighten the floor and ceiling to reveal a little more detail in these areas. vi.    Use a second soft Local Adjustment Brush to brighten the light lens and add a yellow colour to it. 2.     Open the image into Photoshop as a smart object. 3.     Use ‘File->Place…’ to add NDE-2.tif as a smart object into the image. (Press enter when the image appears.) i.       Flip the new layer horizontally so the photographer is facing in the opposite direction. ii.      Resize the new layer to make it a bit smaller. iii.     Remove the background from the new layer by creating a layer mask. (There are a number of ways to do this). iv.    Move the photographer into an appropriate position at the bottom of the frame, and resize if necessary. 4.     Double-click on the NDE-1 icon in the layers panel to open it in ACR. i.       Make a change and resave to see the effect. 5.     Double-click on the NDE-2 icon in the layers panel to open it in Photoshop. i.       Make a change and resave to see the effect. 6.     If you have worked Non-Destructively throughout this exercise you should be able undo or modify any of the editing changes you have performed.

Non Destructive Image Editing – Part 1

THURSDAY, AUGUST 25, 2011

Non-Edstructive Image Editing

	Imaging 2
h	Non-Destructive Image Editing
Name
	§       This is a formative assessment instrument §       You must be rated ‘Competent’ in this assessment item.
Instructions	Read the article provided – ‘Non-Destructive Imaging: An Evolution of Rendering Technology’  by Peter Krogh - and answer the following questions in the space provided.
Questions	Part I – The Evolution of Non-Destructive Imaging Define ‘Non Destructive Imaging’ Image processes where the source image may be adjusted in a way that leaves the original data intact.                                                                                                                                                           List four challenges introduced by digital photography :- Creation of large numbers of photos.                                                                                                                                                 Applying identical adjustments to many photos in one operation.                                                                                                                                                 Interpretation of a single source image in multiple ways (B&W, Colour).                                                                                                                                                 Taking advantage of rapid evolving imaging tech. to reinterpret images with more capable software of the future.                                                                                                                                                 What is meant by a ‘Derivative File’ ? A version of the photo file that has had some adjustments incorporated – it is derived from the original.    (Save As)                                                                                                                                                      What are two problems with using ‘Save As …’ to create derivative files ? Confusion with naming variations trying to find the file you are looking for.                                                                                                                                                 Takes up more storage space since it has to save another copy of the whole file.                                                                                                                                                 What is ‘Self Referenced Non Destructive Imaging’ ?  The source image is wrapped up with a set or many sets of instructions for rendering the photo. Adjustment Layers.                                                                                                                                                                                                                                                                                                                   List two advantages of Self Referenced NDI over the use of Derivative Files :- Image takes up less storage space than having a duplicate.                                                                                                                                                 It is easy to see what has been done to the file by viewing the adjustment layers which can be turned on and off.                                                                                                                                                 Define ‘Parametric Image Editing’ :- Editing images by creating instructions or parameters parametric image editing (PIE).                                                                                                                                                          What is the difference between a Live Rendering and a Fixed Rendering ? Live Rendering uses smaller proxy versions to display changes that are kept in separate instructions (metadata) then when ready apply them to the original Hi Res copy. Fixed Rendering converts the RAW mosaiced image into a form of a JPEG preview. This is because most RAW, other than DNG, are proprietary and undocumented and third-party software should generally not make any alterations to a raw file because of the possibility of corrupting the file.                                                                                                                                                                                                                                                                                                                   List three advantages of NDI :- Multiple photo manipulation. Creating instructions for adjustments makes it easy to apply settings made for one photo to many others very quickly.                                                                                                                                                  Unlimited undo. The processing instructions are easy to change to create a different interpretation of an image.                                                                                                                                                 Space savings. Instructions are a lot smaller than pixels to store, the storage requirements are greatly reduced.

Non Destructive Image Editing – Operations and ND Alternative

f	Imaging 2                                Non-Destructive Image Editing

	Operation	ND / D	Comments / ND Alternative
	Levels / Curves	D	use adjustment layer/mask or do it in LR3
	Rotate Image	D / ND	if rotated 90, 180, 270  it is ND otherwise D.  Make it a smart object
	Clone Stamp	D	create new layer and tick Align box and apply to ‘Current & Lower’
	Save file from ACR	D / ND	D if saving as PSD/TIFF/JPG   ND if saving as DNG or smart object
	Dodge / Burn	D	Layer mask or adjustment layer
	Merge Layers / Flatten Image	D	In some cases Layer Grouping may work
	Paint Brush	D	Create layer and paint on that
	Flip Layer	ND
	Cut part of image out from background	D	Use a Layer Mask
	Erase Tool / Delete Selected Pixels	D	Use a Layer Mask
	Transform Selection – rotate, skew, etc	D	convert to smart object, duplicate smart object and transform the dupe
	Flip Selection	D	create a layer
	Convert to B/W	D	use adjustment layer
	Apply a Filter	D	make smart object  * some filters require bit depth change increase is OK but decrease is D
	Change Layer Opacity	ND
	Change Bit Depth of Image	D / ND	ND if increasing but D if decreasing
	Resize Image	D / ND	D if resample when resizing. ND if  just resize
	Apply a Layer Style	ND
	Crop Image	D / ND	D in photoshop  ND if cropped in LR
	Add an Adjustment Layer	ND
	Sharpen the Image	D /ND	D in photoshop. ND if done in LR
	Apply Lens Correction	D / ND	D in photoshop. ND if done in LR