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Graphics Development Adobe Photoshop. Contents. Needs of images and graphics, market size, animation Drawing basic shapes, filling, colors Adjusting an existing image Layers, Channels and Paths Animated GIFs Patterns – Defining and Using Panoramas Publishing. Introduction.

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contents
Contents
  • Needs of images and graphics, market size, animation
  • Drawing basic shapes, filling, colors
  • Adjusting an existing image
  • Layers, Channels and Paths
  • Animated GIFs
  • Patterns – Defining and Using
  • Panoramas
  • Publishing
introduction
Introduction
  • A Picture is worth of thousand words – An Old Proverb
  • Things can be explained easily when available as an image
  • Photoshop helps us in creating new images, adjusting an existing image, creating special effects or animation of an image and more
graphics usage
Graphics Usage
  • Images can be used for
    • Presentation
      • To explain business/product objective etc
    • Publishing
      • To print beautiful images in posters or invitation or business cards etc
    • Education
      • To teach people
tools available
Tools Available
  • Selection Tool / Marquee Tool
    • Used for selecting portions of an image
    • Rectangular, Elliptical, Horizontal and Vertical
  • Text Tool
    • Used for adding text in an image
    • Horizontal and Vertical aligned text
  • Notes Tool
    • For adding description or comment to an image
    • Text annotation and Audio annotation
  • Eraser Tool
    • To erase the selected portions
    • Simple, Background and Magic
tools contd
Tools contd...
  • Lasso – For Selection purpose
    • Simple Lasso, Polygonal Lasso and Magnetic Lasso
  • Magic wand – For selection purpose
  • Crop – To cut few portions of an image
  • Slice/Slice Selection – To cut image into several slices
  • Move – To move layers of an image from one position to other
tools contd9
Tools contd..
  • Brushes
    • These are used for filling a selected area with colors
    • History brush, Art History brush
    • Healing brush (for filling the selected area with patches / portions from the same image or another image)
    • Patch brush – for filling selected areas with a defined pattern
tools
Tools
  • Stamp tools – For stamping a pattern on an image
    • Clone Stamp – Clones a portion of an image
    • Pattern Stamp – Imprints the selected pattern on the image
  • Background and Foreground colors – The two interleaved squares on the tool box sets the foreground (front square) and background (rear square) colors.
tools11
Tools
  • Blur – To make the surface of the image to look very hazy
  • Sharpen – Sharpens the image appearance
  • Smudge – Mixes up the colors present in the adjacent areas
  • Sponge – Wipes the extra colors and make the image look neat
  • Burn – Darkens the image
  • Dodge – Brightens the image
tools12
Tools
  • Paint Bucket – Used for filling an area with the foreground color
  • Gradient Bucket – Used for filling an area with gradient color (mixed color or pattern)
  • Drawing tools – We can draw rectangle, rounded rectangle, circle, polygon or any other available patterns on our image using the drawing tools
adjusting image
Adjusting Image
  • Click on Image -> Adjustment
  • It has options
    • Brightness/Contrast to adjust brightness and contrast
    • Invert to make dark portions light and light portions dark
    • Posterize – For distorting the image. Lesser the value more the distortion
    • Curves – Automatically adjusting the contrast and brightness
patterns
Patterns
  • To define a pattern
    • Open a 5 X 5 document
    • Zoom to maximum size
    • Select a pencil tool with an appropriate brush size
    • Draw lines (horizontal or vertical or both)
    • Go to Edit Menu and select Define Pattern
    • Give a name for the pattern and click OK
  • To fill a pattern
    • Go to Edit Menu
    • Select Fill
    • Choose Pattern from the dropdown list and select the pattern from the list
noise and distortions
Noise and distortions
  • Adding noise or distortions to the image modifies the appearance of the image
  • Go to Filter Menu and click Noise and then select Add Noise. Give the noise level. Higher the level more is the disturbances caused
  • We can also select Distortions under the same Filter Menu and can choose the type like Ocean waves, ripple etc.
color range
Color Range
  • Photoshop allows us to select a range of color in an image
  • Open an image
  • Click on Select -> Color Range
  • Specify which color we need to select and give OK
  • Those portions in the image that satisfies the condition given will be selected and we can manipulate on the selection
layers channels and paths
Layers, Channels and Paths
  • Layers – Part of the image on which we can work independently without affecting the background. Any number of layers can be created and positioned above the background.
  • Paths – Similar to Layers.
  • Difference is that Changes made on the Path are visible if we click on the path. But changes made on the layer is visible if we move the layer.
  • Channels – Portions of image with similar color or shade are kept as a channel. We can also add new channel
channels
Channels
  • Four basic channels
    • RGB (True picture)
    • Red – Picture with Red component alone
    • Green – Picture with Green component alone
    • Blue – Picture with Blue component alone
  • Alpha channels
    • We can select portions of image and create new channel from it
    • Select portion and right click and click Save Selection as and give a name and Click Save
  • Now in the channels palatte a new channel with the name Alpha 1 is seen
animated gif
Animated GIF
  • Open an image
  • Duplicate the image as many number of times needed (In the layer tab, right click on the background (image) and select Duplicate layer)
  • Add different noise levels for each layer (Filter -> Noise -> Add Noise and give different value for the noise level)
animated gif27
Animated GIF
  • Switch to Image Ready (File -> Jump to Image Ready)
  • In the animation window, set the loop count and the delay for the frame
  • Duplicate the frame
  • In each frame make a particular layer visible (In Layers tab, on which ever layer we have Eye like icon, that layer is visible. Click on the eye icon to hide a layer. Again click on the place to show the hidden layer)
  • Click on Save optimized as from the File Menu, give a name and click OK.
panorama
Panorama
  • Panorama is a wider picture
  • We need to have images taken in and around the same area
  • Those images are copied in different layers of the same document
  • Move the layers appropriately to create a continuous but wide image
publishing
Publishing
  • The images are collected together and placed in a folder
  • Click on File -> Automate -> Web Photo Gallery
  • Choose the template for the gallery.
  • Fill all information needed
  • Click OK
  • An HTML page will be created
  • We can access those photos from HTML file