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Understanding Color Modes: Indexed Color vs. Direct Color in BMP

Learn the differences between Indexed Color and Direct Color in BMP images. Explore how pixel colors are described and differentiate the color pallets. Discover the file size implications of using Direct Color over Indexed Color.

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Understanding Color Modes: Indexed Color vs. Direct Color in BMP

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  1. Indexed Color vs. Direct Color(in BMP) TYWU

  2. Direct Color • No Pallet 32*32 Image

  3. Direct Color • 3 Bytes Describes a Pixel White Block 3 Rows * 32 Columns * 3 RGB = 288 Bytes

  4. Indexed Color • Pallet with 256 Colors

  5. Indexed Color • Illustration for White • 215 = 0xD7

  6. Indexed Color • A White Block 3 Rows * 32 Columns * 1 Index No = 96 Bytes

  7. Indexed Color • Index of Red • 180 = 0xB4

  8. Indexed Color • A Red Block

  9. Indexed Color • Pallet • Index 1, R=0, G=0, B=51=0x33 • Index 2, R=0, G=0, B=102=0x66

  10. Indexed Color • Pallet • A color uses 4 Bytes Color 0, Color 1, Color 2, Color 3

  11. File Size • Direct Color > Indexed Color

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