Photoshop

Save an image for use on the Web

1. SAVE. To acquire an image, save it from a scanner, from the Internet, or from a digital camera. Either let the scanning software open your image directly into Photoshop or open Photoshop first and open an image file from the File menu. Click on File, then Save As..., then name it properly as a jpeg file, eg. ManetOlympia.jpeg, search the pulldown menu for jpeg or jpg, and click Save.

For the jpeg box that appears, Image Options can be changed to make your web images faster to load. Move the slider bar to High quality (8) rather than Best or Maximum. This is usually fine and hopefully will make the image 50k or less for loading on a slow 28.8Kbps modem. If not, you can resize the image.

If the image is another type of file or mode that doesn't save to jpeg, go back to Photoshop, try clicking on Image, then Mode, then RBG and then save it as a jpeg file.

2. PROBLEMS. Note: UNDO. Remeber, if you made a change you don't like, Photoshop has one Undo. Click on File and then Undo. If that doesn't work, you can use Step Back for multiple undos. Close down the file you are working on and made a mistake on, without saving it. Reopen the same file. Another option, which does the same thing, is to click on File and then Revert.

Tools

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Correct an Image

1. ROTATE. Click on Image and then Rotate Canvas and then Arbitrary. For the Angle command, a 1 or 2 is enough for a gentle nudge rotation.

2. CROP. Click on the crop tool in the tool sidebar. If the toolbar is closed, click on Window, Show Toolbar. The crop tool looks like a measuring instrument. You may just click the letter C, for a shortcut to this tool.

Position the cursor in the upper left hand corner of the image, starting where you want to crop. Drag down and to the right to create a box, that includes all of the image you want to save. Double-click in the center of the selection to crop.

2. LEVELS. Click on Image, then Adjustments, then Levels. Position the left and right triangles, under the Input Level graph, so that they are directly under the outer edges of the black vertical lines of the graph. Slide the center triangle left to lighten and right to darken.

3. BRIGHTNESS. Click on Image, then Adjustments, then Brightness/Contrast. Slide the triangles right or left until the image looks better.

4. COLOR BALANCE. Click on Image, then Adjustments, then Color Balance. Decide whether there is too much or too little of any given color. Slide the triangles right or left until the image looks better.

5. IMAGE SIZE. Click on Image, then Image Size. 

6. SHARPEN. If your image was reduced in size, it will need to be sharpened. Click on Filter, then Sharpen, then one of the following choices. Unsharpen Mask is the weakest change, so do this one first. Next in strength is Sharpen Edges. If you need something stronger, try Sharpen. Sharpen More will make the most changes.

7. Click on File, then Save.

Now your image file is ready to be included (usually by an Insert command) in a Word document, or an HTML webpage, or in WebCT, or sent in email!