Propuesta de mejora en la implementación del SG-SST en la empresa

When no area has been selected in an image, any command that you apply affects the entire image. To restrict the command to a certain area of an image, you need to create a selection area. Click the Selection Tools in the Toolbox, then choose a type of selection tool to use.

To create a standard selection:

1. Click the Standard Selection Tool and select the desired shape in Shape.

2. Drag your mouse over the image. Once the dotted line area covers the area you want to select, release the mouse button.

Tip: Press the [Spacebar] to toggle between showing and hiding a selection marquee.

Selection Tool Description

Pick Tool The Pick Tool is used mainly to select objects and static selections.

Standard Selection Tool The Standard Selection Tool lets you select areas of an image based on a preset size and/or shape, such as a rectangle or circle. You can also use this to convert selection areas into objects by dragging the selection. Lasso Tool The Lasso Tool lets you easily select irregularly-shaped

subjects, such as a person’s head. This is useful when you want to separate a foreground object from the

background. This works best when the foreground subject and background have high contrasting colors. Select Smart Lasso in the Attribute Toolbar to allow easier selection by automatically snapping to the edges of the desired object.

Magic Wand Tool The Magic Wand Tool creates a selection area by selecting specific colors. This is particularly useful if either the subject of the image or the background is a distinct color.

Bezier Curve Tool The Bezier Tool draws straight selection by default, but can also create curves.

To use the Lasso Tool (Smart lasso):

1. Click the Lasso Tool in the Toolbox.

2. Select Smart lasso on the Attribute Toolbar to let you trace the edges of the subject you want to select.

3. Set the Area to consider when tracing. This determines the area that the Smart lasso will consider when tracing the edges.

The Area to consider when tracing is represented by a circle. The larger the value, the larger the size of the circle.

4. Click to mark the starting point then trace the subject you want to select by moving the mouse over the edges of the subject (no need to hold down mouse button).

Tips:

• If you want to create a selection area based on precise dimensions, select Fixed size on the Attribute Toolbar and then enter the desired width and height.

• To add to an existing selection, press [A] as you select. To remove parts of a selection, press

[S] as you define the section to remove.

Tip: If the subject you are selecting has irregular edges (e.g. flower petals) and you do not want to include unwanted areas in the selection, it is recommended to set Area to consider when tracing to a lower value.

Once the dotted line area covers the area you want to select, release the mouse button.

Image on the left shows Area to consider when tracing set to 30 while the image on the right shows Area to consider when tracing set to 80.

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5. While tracing, when you have made a desired edge selection, click on the selection path to add an anchor point. Adding an anchor point prevents you from accidentally retracing (deleting) your selection path.

6. Click on the starting anchor point to close the selection. The selection path, instead of the usual dotted path, becomes a line path.

7. Drag and adjust the nodes to make your selection more precise. 8. Click to generate a lasso selection.

To use the Lasso Tool (no Smart lasso):

1. Drag the mouse to select the subject.

2. Follow steps 6 to 8 of the “To use the Lasso Tool (Smart lasso):” procedure.

To use the Magic Wand Tool:

1. Click the Magic Wand Tool in the Toolbox.

2. Set Similarity value to determine the range of colors to select relative to the reference color.

Tips:

• If you make a mistake in selecting, just retrace along the selection path to the point where you want to begin selecting again. You cannot retrace a path that is in between two anchor points.

• To delete a selection path that is between two anchor points, press [Backspace].

Tip: You can also double-click to close the selection.

Tip: Click to cancel the current selection.

Tip: If you are selecting a straight edge, release the mouse when you reach the starting point of the straight line then click the end of the straight line.

3. Select Line then click and drag to select all colors similar to the line selected or select

Area then click and drag to select all colors similar to the area selected, based on the similarity value on the Attribute Toolbar.

4. Click the subject in the image to select the reference colors.

Tip: Select Connected pixels on the Attribute Toolbarto only select the similar pixels adjacent to your original selection. If this option is cleared, all pixels of a similar color within the image will be selected.

Note: If there are other objects or selection areas made by other Selection Tools, the Magic Wand

will include parts of the objects or selection areas that are similar as well.

Tip: To add to an existing selection, press [A] as you select. To remove parts of a selection, press [S]

as you define the section to remove.

You can also:

Expand a selection area Click Selection: Similar (or right-click and select Similar). Based on the existing selection area, it expands the selection to include similar pixels from the entire image or from neighboring areas.

Click Selection: Expand/Shrink (or right-click and select

Expand/Shrink). All sides are expanded by equal values. Move a selection area marquee To move the selection marquee, click a Selection Tool

then on the Attribute Toolbar, click Move Selection Marquee.

After selecting Move Selection Marquee, drag the selection marquee to another area.

Click on the bird in the

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Add or subtract from a selection To add an area, select from the Mode options on the Attribute Toolbar and click [+], or press [A] while selecting more of the image (the pointer changes to display a plus sign).

To exclude an area click [-], or press [S] while selecting the unwanted area (the pointer changes to display a minus sign).

Create a border around the selection By applying a fill to this area, you can easily create a frame around the main subject of an image (for rectangular and oval selections).

If you have an irregular selection, you can create a custom outline shape, or simply emphasize the subject of an image by outlining it.

After creating a selection, select Selection: Border (or right-click and select Border). You can specify the width of the border and add a soft edge if desired.

After the border selection has been created, fill it with a selected color or pattern.

Soften a selection edge Click Selection: Soften (or right-click and select Soften) to make the edge of a selection area appear diffused, creating a “halo-like” effect.

Note: If you do not have Preserve Base Image [F5] selected and you move the selection, you will notice that the base image shows a corresponding diffuse-edged hole filled in with the background color where the selection area was before.