Class 9 Computer Science Photoshop Notes

Step-3) Click or drag over the image to draw strokes.

Eraser Tool

This tool is used to erase a part of an image. To erase, follow the given steps:

Step-1) Click on Eraser Tool and select the type of eraser from the list :

• Eraser Tool
• Background Eraser Tool
• Magic Eraser Tool

Step-2) Click and drag the mouse over the image to erase.

Paint Bucket Tool

The Paint Bucket Tool is used to fill or paint an entire selection. To use Paint Bucket Tool, follow the given steps:

Step-l) Click on the Paint Bucket Tool.

Step-2) Choose the colour from Color Palette and click anywhere on the canvas to coat the canvas with the colour.

Type Tool

Type Tool is used to add text in a Photoshop file. To add text, follow the given steps:

Step-l) Click the Type Tool.

Step-2) Click inside the canvas and type the text. Once your text is entered, you can change the font style, size, colour, bold, underline, italics, etc. using the Options bar.

Retouching Tools

Tools that help in editing an image are referred as the Retouching tools. These tools can be used on the complete image or on a selected part of the image.

Let us discuss two commonly used Retouching tools.

Spot Healing Brush Tool

This tool helps to fix image imperfections such as scratches, blemishes, dark spots, etc. To use Spot Healing Brush Tool, follow the given steps:

Step-1) Open the file to be edited and select Spot Healing Brush Tool .

Step-2) Choose a brush size from the Options bar.

Step-3 ) Click over the spots to fix imperfections in the image .

Healing Brush Tool

This tool also helps to fix imperfections but is different from the Spot Healing Brush tool as it requires to make a selection or define a source point before using it.

To use Healing Brush Tool, follow the given steps:

Step-l) Open the file to be edited and select the Healing Brush Tool.

Step-2) Choose a brush size from the Options bar.

Step-3) Press Alt key and click on the image to define a source point.

Step-4) Click over the image to fix imperfections in the image.

Clone Stamp Tool

The Clone Stamp Tool is used to create a duplicate copy of one part of an image over another part of the same Image.

To use Clone Stamp Tool, follow the given steps:

Step-1) Open the image and select Clone Stamp Tool.

Step-2) Use Alt key and click to define a source point.

Step-3) Drag the mouse at the place where the clone is to be created.

COPYING AND PASTING SELECTION

Copy and Paste option is used to copy the selected part of the image to other location. To copy and paste, follow the given steps:

Step-1) Select a part of an image using any of the selection tool.

Step-2) Click Edit Menu à Copy option. Step-3) Create a new file using File à New. Step-4) Now, click Edit Menu à Paste option.

LAYER

Photoshop layers are like transparent sheets stacked on top of each other to create the final image. You can change one layer without affecting the other layers or the background of the image. Layers create larger files but separate portions of the image, therefore making the work easier.

The layer palette shows a small thumbnail view of image in the layers palette.

CREATING A NEW LAYER

A new layer is created when you paste any object in your in your image. To create a new layer, follow the given steps:

Step-1) Click the Layer menu, select New  click the Layer option. The New Layer dialog box appears.

Step-2) In the Name text box, type the desired name. Click OK.

RENAMING LAYER

To rename a layer, follow the given steps:

Step-1) Select the layer from Layers palette and click Layer Properties from the Layer menu

Step-2) In the dialog box that appears, type a new name for the layer and click OK.

DELETING A LAYER

To delete a layer, follow the given steps:

Step-1) Select the layer you want to delete from Layers palette and click Layer Menu à Delete à Layer option.

Step-2) In the confirmation dialog box that appears, click Yes.

HIDING AND SHOWING A LAYER

To hide a layer, click on the eye icon that is the foremost left column of the layers palette.

To show a layer, click in the leftmost column to bring back the eye icon. The order of the layers affect the image displayed.

MERGING LAYERS

Merging layers means to combine the visible layers into a single layer.

To merge different visible layers, click Layer menuà Merge Layers option.

FILTERS

Filters help to give special effects to the picture or selected portion of it.

Types of Filters

There are 11 main categories of filters in Photoshop:

 Artistic  Blur  Brush Strokes  Distort  Render  Stylize

 Noise  Sharpen  Texture  Pixelate  Sketch  Video

To apply a filter, follow the given steps:

Step-1) Open the image.

Step-2) Choose any category from Filter menu. If a dialog box appears, click OK to see the effect.

Filter Gallery

The Filter Gallery helps you to apply filters and view the thumbnail image of the change that appears, which you may accept by clicking OK.

Step-1) Click on Filter menu and choose Filter Gallery.

Step-2) Choose the filter type from the gallery.

Step-3) Click OK to apply the filter.

PROJECT WORK

Answer the following questions: