CBSE NCERT Class IX (9th) | Computer Science
NCERT Solutions for Class 9th: Ch 3 Introduction to GIMP
► (a) Open source
► (b) Lasso
► (c) Current Layer
► (d) Crop
► (a) Reducing the size of an image
► (b) Two
► (a) Layers
► (b) Size
► (a) Canvas
► (b) Text
► photo organizer
► animated text
► unwanted parts, selected area
Image editing encompasses the processes of altering images, whether they are digital photographs, traditional analog photographs, or illustrations.
2. FastStone Image Viewer
3. Serif PhotoPlus X4
4. Photo Impression 6.5
5. PhotoStudio 6
8. Photo! Editor
10. Corel PaintShop Photo Pro X3
GNU Image Manipulation Program is free and powerful open source image editing tool that provides retouching of photos, authoring of photos and composition of photos. It is free and consists of many similar features provided by the Photoshop. It’s available for free for download distribution software that allows you to create image composition and image authoring.
Traditional analog image editing is known as photo retouching, using tools such as an airbrush to modify photographs, or editing illustrations with any traditional art medium.
(a) .gif: Graphics Interchange Format
(b) .png: Portable Network Graphics
(c) .tff: Tagged Image File format
(d) .jpeg: Joint Photographic Experts Group
(e) .jpg:Joint Photographic Experts Group
(f) .psd: Photoshop Document
(a) Rectangular Tool: The Rectangle Selection tool is designed to select rectangular regions of the active layer.
(b) Oval Select Tool: The Oval Selection tool is used to select circular and elliptical regions from an image, with high-quality anti-aliasing if we want it.
(c) Lasso Tool: The Free Selection tool, or Lasso, lets you select a drawing it free-hand with the pointer, while holding down the left mouse button. When you release the mouse button, the selection is closed by connecting the current pointer location to the start location with a straight line.
(d) Text Tool: The Text tool places text into an image.
We can change the size of an image by following ways:
1. Set the Resolution of image
2. Set the Interpolation Quality
3. Click on “Scale” to confirm.
We can prepare images for web by following steps:
Step 1: First need to reduce the image to a better width and height for web according to the scale.
Step 2: In File → select Export...
In the JPEG Save Dialog, we can opt for GIMP defaults which reduce the size quite a bit, without hurting the visual quality of the image. If we would like to make it smaller still, change the compression level by moving the “Quality” slider down. We can see the quality of the image changing.
Layers are wonderful tools, especially to create collages or to delete various portions of an image. In GIMP, the layers are virtually stacked up on top of each other; the lower layers will show through resulting in a composite image that can be exported as a flat file such as a JPEG or PNG.
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