How To Using the Brightness/Contrast command In Photoshop

There are two ways to adjust the colors in an image. The first method is to choose a command from the Image > Adjustments submenu. This method permanently alters the pixels in the active layer.

The second method is to use an adjustment layer. Adjustment layers let you experiment with color and tonal adjustments without permanently modifying the pixels in the image. The color and tonal changes reside within the adjustment layer, which acts as a veil through which the underlying image layers appear. You must use Photoshop to create and edit adjustment layers; however, you can view existing adjustment layers in ImageReady. 

To open a color adjustment dialog box:

1. If you want to make adjustments to just a portion of your image, select that portion. If you make no selection, the adjustment will be applied to the entire image.

2. Do one of the following:

·         Choose Image > Adjustments, and choose a command from the submenu.

·         (Photoshop) Create an adjustment layer.

·         (Photoshop) Double-click the thumbnail of an existing adjustment layer in the Layers palette.

To see your adjustments in the image before accepting them, select Preview in the color adjustment dialog box. 

### To cancel changes without closing a color adjustment dialog box, hold down Alt (Windows) or Option (Mac OS) to change the Cancel button to Reset; then click Reset. This resets the dialog box to the values it had prior to your changes. 

Learn - Corping photo using photoshop-(screenshot tutorial)

It is a very easy work for Photoshop. Everybody can try it for Image corping or resizing. I have just discus this tutorials with step-by-step bellow:

۞ At fast you open the Photoshop >>

۞ Open an image from your computer what you want to corp.>>

۞ Now you select 'red-circle' indicated "Corp" tool for photo corping.>>

۞ Drag on to the image with mouse cursor and set the resolution area what kind of you want to corp.>>

۞ Now just press the "Enter" from keyboard and finish the image corping. Now you use this photo any where and printing.

Saving images in different formats using Adobe Photoshop

This tutorial will demonstrate how to use Adobe Photoshop to save images in different image formats, such as .jpeg, .gif, .png, etc.  While this tutorial was created using Photoshop CS2 (version 9.0), there are only minor user interface changes from version 6.0 and above, and you may use this tutorial for versions 6.0 and above.

1. First, open your version of Photoshop.  Next, open the file you wish to save as another format.  If you have several images to convert, you may wish to make a new folder to save your images in as well.  To open a file, you may either press “ctrl + o” on the PC or “command + o” on the Mac, or you may click on the “file” button on the upper left corner of the Photoshop window, and select “open

You can then navigate to the file you wish to work with.  

2. Once you have opened the file you wish to work with, click on the “file” button once again, and select “save as”.  Alternately, you may press “shift + control + o” on PC, or “shift + command + o” on the Mac.  This will bring up the “save as” prompt.  This will allow you to save a new version of the image in a different format without overwriting or erasing the original file. 

Underneath the file name, you will see the current format of the file; in this case, the original file is a “.tiff” file, which is a good archival format for an image, but whose file size is far too large for usage in PowerPoint or the web.  Because of this, we will save a version of the file for use in applications like PowerPoint or to post on a website in “.jpeg” format.  Note: you may also use this process to convert a “.jpeg” image into a non “lossy” file format such as “.tiff” (for an explanation of file formats and their different properties, see the tech tip regarding image file formats).  To select a different file format to save the file as, click on the black, downward facing arrow to the right of the file format.  This will bring up a listing of all formats Photoshop may convert the file to.  For this tutorial, select “.jpeg”, and click “save”.  

3. Next, you will be presented with options regarding how you wish to save the .jpeg file.  These different settings affect the overall image quality and file size of the .jpeg.  

  For our purposes, a quality of 8 or so should be more than adequate for your presentation needs.  For slightly better image quality, you may select “Baseline Optimized” or “Progressive” (which will also allow you to select how many scans, or image analyses, Photoshop makes of the original image; the more scans, the better the image quality).  Below these options, you will see the files resultant size based on the settings you have selected for the image, as well as the amount of time it would take an internet browser to load the image at various download speeds.  Once you have found a quality and file size balance to your liking, click “OK” in the upper right corner.  This will save the new version of the file in its new file format.