Remember to:

Check the following before you make your BLOG public:

Copyright - using material that belongs to someone else.
Every picture you put on your Blog needs to be yours. Don't publish pictures that you did not create or that were someonelse's and you added to in some way.

Issues of confidentiality - publishing material that may compromise someone.
You cannot publish anything that would reveal personal details about someone. Names, phone numbers, marital status etc.

Libel - writing anything that may 'defame' someone.
Don't write anything negative about someone who can be identified from your comments. Take off your comments for example, on other peopl's blogs.

To make your BLOG public go to -

-customise
-settings
-permissions
-Blog Readers
-tick on 'all readers'

Using curves

Use curves to adjust a colour image and use Photoshop Help to show you how to do this.

Go to:
-Photoshop Help
-Making colour and tonal adjustments
--Adjust image colour and tone
-Curves overview.

Photoshop help is very good and it is useful for you to get used to referring to it.

Colour in CAD

For the following show before and after pictures and explain what you did. Distinction marks depend on showing an understanding so review and evaluate what you are doing. To help you achieve this ask yourself if you completed your own objective with the picture.

1. Turn a colour digital image Black and White. For instructions on this see the Black and White post of this BLOG.

2. To achieve a naturalistic result use levels white dropper on a picture to get a realistic colour balance.

3. Isolate one area of the picture to stay in colour and make the rest Black and White (use instructions from number 1). Adjust the colour separately.

4. Choose a filter to change the colour use it and discuss the results.

5. Change the colour in a picture using curves and explain what you did.

Task for CAD

Look at: 'Black and White Conversion methods' label and change one of your own colour digital photographs in this way. Then choose another way of converting colour into Black and White in Photoshop and change the same photo again. Compare the results, consider which one is better and explain why. In particular consider the tonal value, does the picture have many tones between the darkest black and the lightest white? Is one result more evocative than another?

Using Channels - converting to Black and White.

1. Open Image in Photoshop and make a duplicate (save the original work on the duplicate)

2. Go to 'Layer' in the horizontal tool bar:
- New adjustment Layer
-Channel Mixer (Click) -
first window click ok

second window adjust to:
select monochrome x

Then, as a rough guide try this combination:

Red 70%
Green 30%
Blue 20%

Adjust this so that it LOOKS good (how you want it) but aim at the total percentage of colours equalling 100%

3. Add Hue/Saturation Layer
(Go to Layers-New Adjustment Layer - Hue/Saturation - OK)
Click OK
Then go to Layers window and move your HUe/Saturation Layer (click and drag) UNDER the Channel Mixer (so it is closest to the background layer) - double click on the icon(black and white circle) - adjust the saturation.

Converting to Black and White using Layers and Hue/Saturation

First of all go to the 'Window' drop down menu and make sure 'Layers' is selected.

1. Go to Layers (drop down menu)
- New Adjustment Layer
-Hue/Saturation

Click OK to New Layer window.

2. In the nex window to open up 'Hue/Saturation' reduce Saturation to -100 (far left) and click ok.

3. Click on 'Background' in Layers palette.

4. Go to Layer on drop down menu (again) and
-New Adjustment Layer
- Hue/Saturation
-In 'Mode:' change 'Normal' to 'color' (close to the bottom).

5. In Hue/Saturation window click OK

6. In Layer's window double clikc on the bottom hue/saturation layer's icon.

7. In this window change the 'master' drop down menu first to 'red' and adjust, then to 'green' and adjust then to 'blue' and adjust.
Click ok when you've done.

This will now be a psd file (Photoshop document) which takes up a lot of memory. If you want you can save it like that and then do a duplicate and go to the Layers window and 'merge layers' then save as a jpg. Or simply save as a jpg in the first place but then you won't have an original.