NCERT Solutions for Class 10th: Ch 2 Advanced GIMP Computer Science
ExcerciseA. Multiple choice questions
1. _________ tool helps you to add a new layer to the image which is identical copy of the active layer.
(a) Smudge Tool
(b) Dodge Tool
(c) Perspective Tool
(d) Duplicate Layer
► (d) Duplicate Layer
2. By default the mask is shown in ______, but you can change this if another mask colour is more convenient.
(a) Red
(b) Blue
(c) Green
(d) No colour
► (a) Red
3. In _________ mode, the selection is shown as a translucent screen overlying the image,whose transparency at each pixel indicates the degree to which that pixel is selected.
(a) Default
(b) Quickmask
(c) Marching ants
(d) Normal
► (b) Quickmask
4. __________ are the transparent sheets one on top of the other.
(a) Masking
(b) Tools
(c) Layers
(d) None of the above
► (c) Layers
5. By default the extension of Gimp file is ______
(a) .XCf
(b) .BMP
(c) .TIFF
(d) .PNG
► (a) .XCf
6. GPL stands for
(a) General Private license
(b) Great Pioneer License
(c) General Public Limited
(d) General Public License
► (d) General Public License
7. The image loses some of its quality by being _______
(a) Scaled
(b) Merging
(c) Renaming
(d) Masking
► (a) Scaled
9. In _______ mode, over-application of the tool will produce noise.
(a) Sharpen
(b) Blur
(c) Dodge
(d) Smudging
► (a) Sharpen
10. ________ takes colour in passing and uses it to mix it to the next colours it meets.
(a)Sharpen
(b) Blur
(c) Dodge
(d) Smudging
► (d) Smudging
B. Answer the following questions:
1. Name the application areas where Gimp can be used.
Answer
The application areas where Gimp can be used:
1. It can be used as a simple paint program.
2. It can be used as an expert quality photo retouching program.
3. It can be used as an online batch processing system.
4. It can be used as a mass production image producer to develop different models.
2. Mention all the features of Gimp.
Answer
Features of GIMP:
1. The advanced scripting interface allows everything from the simplest task to the most complex image manipulation procedures to be easily scripted.
2. It can convert and save files to many file formats such as gif, jpeg, tiff.etc
3. It can load and save animations in a convenient frame as layer format.
4. Virtually unlimited images can be opened at one time.
5. GIMP works with numerous operating systems including Linux, Mac OS and Microsoft Windows.
3. What do you understand by General Public License (GPL)?
Answer
The GPL provides the users with the freedom to access and alter the source code.
4. Which tool is used to align the objects placed on different layers? Explain all its options.
Answer
The Align tool is useful to align the objects placed on different layers.
The options of Align Tool become active when a layer is selected. When you click on one of these buttons, you align the selected layer with left edge, horizontal middle, right edge, top edge, vertical middle, or bottom of the target.
5. Name the properties needs to be changed while scaling the image.
Answer
Size of the layer and the image quality needs to be changed while scaling the image.
6. Which tool is used to lighten the pixels in an image?
Answer
Dodge tool is used to lighten the pixels in an image.
7. Which tool is used to darken the colour pixels in an image?
Answer
Burn tool is used to darken the colour pixels in an image.
8. Differentiate between Shear and Perspective tool.
Answer
Shear tool is used to shift one part of an image, a layer, a selection or a path to a direction
and the other part to the opposite direction whereas Perspective Tool is used to change the dimensions of the active layer content, of selection content or of a path.
9. What is the default background and foreground colour of image window?
Answer
Black & White is the default background and foreground colour of image window.
10. How is blur tool different from smudge tool?
Answer
The Blur tool is used to blur or softened the areas of an image where the brush is applied while Smudge tool uses the current brush to smudge colours on the active layer or a selection.
11. Name any four tools used for changing the pixel arrangement in an image.
Answer
The Scale Tool, Shear tool, Perspective Tool and Flip tool are tools used for changing the pixel arrangement in an image.
12. What is the difference between Blur tool and Sharpen tool?
Answer
The Blur tool is used to blur or softened the areas of an image where the brush is applied while Sharpen tool is used to increase the contrast where the brush is applied.
13. How is flipping an image different from rotating an image?
Answer
Flippin an image means rotating the image in the other direction to create the image while rotating an image means to rotate layers within an image.
14. Write the steps to apply blend effect on an image?
Answer
Step 1: Select the foreground and background colour if you want to blend two colours otherwise it will take white & black colour as default.
Step 2: Fill the colour using bucket tool.
Step 3: Click on blend tool and select the area till where you want to have blend effect.
15. What are Layers? What is the purpose of using Layers?
Answer
Each individual transparency is called a layer. Layer provides a variety of effects that change the appearance of the image. It allows you to work with one element of an image without disturbing the others. Layers are the transparent sheets one on top of the other.
16. What is the need of merging the Layers?
Answer
Merging the Layrs give different look to image. It show both image with effect.
C. Identify the tools used for the following purpose:
1. To resize the layer/image
► Scale Tool
2. To move layers
► Move tool
3. To align the layers with various objects
► Align tool
4. To create the mirror image
► Transform Tool
5. To draw free hand drawings
► Pencil Tool
6. To lighten the colour pixels of an image
► Dodge tool
7. To give wet paint effect in an image
► Paint Brush tool
8. To shift one part of an image/ a layer to a particular direction
► Shear tool
9. To apply different colours without effecting the original image
► Selection Tool
10. To remove objects from the canvas
► Eraser Tool
Notes of Chapter 2 Advanced GIMP
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