Adobe Photoshop 7.0

Adobe Photoshop 7.0 About Working with Colour

Adobe Photoshop 7.0 About Working with Colour

About colour modes and models

Colours mode sets the pattern of colours used to display and print images. Photoshop is based on models to define and reproduce colours. Typical models include HSB (colour, saturation, brightness). RGB (red, green, blue); CMYK (Cyan, Magenta, Yellow, Black); And CIE L * a * b *. Photoshop also includes indexed colour and deutonation in methods such as special colour output. Amigredi uses RGB mode to work with images.

In addition to determining the number of colours to display in an image, colour methods affect the number.

Tip You can set up an information palette so you can select any tool, place the image on any part of an icon, and set the colour value under the pointer. You can customise the informative palette and colour samplers to express colour values ​​using HSB, RGB, CMY, LAB, or Gray scale methods, without self-image Changed the format. (See Pixels (Photoshop) Colo Values ​​and How to Change the Information Palette Options in the Information Palette (Photoshop).

Colour Gamuts

Working with Colour
Working with Colour

One aspect is the range of colours that the colour system can display or print. The colour of the colours seen by the human eye is wider than the aspects available in any colour model.

Among the colour models used in Photoshop, L * A * B is the largest wrestler, covering all the colours of the RGB and CMY game. Typically, RGB jams have a subset of colours that can be viewed on a computer or television monitor (which emits red, green, and blue light). Therefore, some colours, such as pure cyan or pure yellow, may not appear correctly on a monitor.

CMY’s gametes are small, containing only colors that can be printed using process color ink. When there are no colors that can’t be printed on the screen, they are known as outside colours. (See Outdoor Color Recognition (Photoshop).)

Adjusting the monitor display

Working with Colour
Working with Colour

Although the RGB colour model used by computer monitors is capable of displaying high-spectrum spectrum, a video system that sends data to a given monitor often decides how many colours can be displayed simultaneously. By understanding how digital files and on-screen colour data are measured, you can better adjust the colour display settings to overcome the limitations of your video system.

Photoshop Converting between colour modes

Converting between colour modes
Working with Colour

choose a different/Unique colours mode for an Picture, you forever change the colour Merit ​​in the picture. For example, when you convert an RGB Color image to CMY mode, the RGB color values ​​(defined by the CMY working space setting in the Color Settings dialog box) are adjusted outside the CMY game. Are As a result, it’s best to do the following before changing images.

  • Maximize the original image format (usually RGB from most scanners, or CMYK from traditional drum scanners or if imported from a Skytex system).
  • Save a backup copy before switching. To edit the original version of the image after conversion, be sure to save a copy of your own image, which includes all layers.
  • Flatten the file before replacing it. When the mood changes, the color interaction between the laying methods will change.

To convert an image to another mode:

  • Select Image> Format and Mode from your sub menu. Available modes for active image appear dimmed in the menu.
  • Images are flattened when converted to a multichannel, bitmap, or indexed colour format, as these styles do not support layering.

Photoshop Converting between Grayscale and Bitmap modes

Converting an Picture to a bitmap format reduces the Picture to Different colours, making colour info in the Picture much easier and lower its file size. To convert a Picture to a bitmap format, you must first convert it to a Gray scale format. This removes colour and saturation Computing from the pixels and gives only bright value. However, because there are some editing options available for editing bitmap mode images, it is usually better to edit the image in Gray scale format and then change it. Working with Colour

Note that the image of the edited bitmap mode in Gray scale mode may not look the same when switched to bitmap mode. For example, consider a pixel that is black in bitmap format and then edited in Gray scale format with a shade of Gray. If the Gray value of the pixel is light enough, it will turn white when the bitmap is converted back to the format.

Photoshop Converting to indexed colour

Change to COMPUTING colour brings the Quantity of colours in the icon to at least 256 – the standard Quantity of colors in collaboration with GIF and PNG-8 formats and many multimedia Software. This change Change the size of the file by removing color information from the Picture.

To change the indicator color, you should start with Gray scale or RGB image.

To convert Gray scale or RGB image to indexed colour:

Select Image> Format> Colours
Note: All visible layers will be flattened. Any hidden layer will be discarded.

For Gray scale images, the exchange takes place automatically. For RGB Picture , the Indexed Colors dialog box appears.

  • Select Preview the Indexed Color dialog box to preview the changes.
  • Specify conversion options

Working with Colour

Working with Colour Working with Colour Working with Colour Working with Colour Working with Colour Working with Colour

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