3. Making Selections.
 |
|
|
 |
 |
|
 |
|
|
 |
|
|
 |
|
|
 |
|
|
 |
|
|
 |
|
|
 |
|
|
 |
|
|
 |
|
|
 |
|
|
 |
|
|
 |
|
The aim of these sessions is to introduce the students some of the ways in which parts of images can be selected in Photoshop.
Many
of the effects you have experimented with so far can be achieved using
other pieces of software, for example Microsoft Photo Editor.
Photoshop is a more powerful programme because it allows you to select
parts of a picture and change them in all sorts of ways.
Photoshop has many ways of selecting parts of an image
Use the SELECT ALL command from the Select menu.
Use the RUBBER STAMP tool from the tools menu (Remember to Pres the ALT
key on the keyboard and click the Left mouse button to select an area
from which to start copying.)
Use the rectangular and OVAL SELECTION tools from the tools Menu.
Use the FREEHAND selecting tool from the tools menu and experiment with
using different brushes (use Window>Show Brushes to open the brush selector)
Use the Magic Wand to select areas of the same colour on the image. (
Click with the Shift button pressed down to add areas to the selection)
Use Image>Adjust>Select Colour to change one colour across the whole image.
When you have selected areas, use the EDIT>CUT, EDIT >PASTE commands to
add your selection to a new image.
1. Use the File>New to create a new blank page. In the dialogue box which appears set the Image Size at Width 640 Pixels, Height 480 Pixels, set the Mode to RGB Color and the Contents to Background Color.
2. Open a portrait and use the Image>Adjust commands you used in the last session to create an image with areas of flat colour. Example
3. Use the Marquee tool to select an area of the image by clicking and dragging the mouse across the image. To change the selection to a new area click and drag again or use the Select>None command.
4. Use the Edit>Copy command to copy the selection and the File>New to create a new page. Notice that Photoshop automatically enters the page size which fits the area you have copied. Click on this new page and use the Edit>Paste command to paste your selection onto it.
5. Repeat the process but this time experiment with the Lasso tool.
6. Select the Magic Wand tool. This tool selects continuous areas of colour in an image. Double clicking on the tool brings up a dialogue box which allows you to change the Tolerance of this tool i.e. how closely a colour on the image matches the colour you click on before it gets selected. Holding down the Shift, Alt and Ctrl buttons while clicking on the image allows you to add to, subtract or move selections. Experiment with selecting parts of images using this tool and copy and paste them onto separate pages. If you have selected an irregular area you might wish to set the Contents of the new page in the dialogue box to Transparent.
7. The Magic Wand tool can also be combined with the options on the Select Menu to make some useful techniques. For example, select an area and experiment with the Select>Inverse, Select>Similar or Select>Modify commands.
8. At this stage you might need to save your work. Click on each image and use File>Save As. You will be given a range of options for the type of file format you wish to use to save your work. If you want to keep images at their best quality save them as .TIF files. If you want to save space, save them as .JPG files . Give your file a name and click Save. For .JPG files you will be given an option to choose the quality you wish to use. Quality 6 is a happy medium.
