Application examples of rotation image, distortion correction and equal-ratio clipping in PS

A picture has the hand, it is likely that the image has a tilt, wide angle distortion, there is need to cut the place, the following figure:

Equipment: Canon SX130 is [Canon digital camera]

Time: 2011-10-17 22:55:55+08:00 shutter: 1/18 aperture: f/3.4 focal length: 5 mm Sensitivity: 80

Of course, you can use light and shadow to deal with similar situations, but what if this is a raw picture with PS? Do you want to save it and use light and light? The following is an introduction to the method of using PS to handle such graphics.

1, open PS load picture, bring up "grid line".

Select View-Display-grid to get the following effect:

You can see the grid is too dense, then you can choose Edit--"preferences"--"guides, grids and slices", the "sub-grid" modified to "1", the following figure:

2, rotate the image.

Select "Filter"-"twist"-"lens correction", where we can slowly debug "angle" until the screen level (because there is a grid line, so it is easy to tell whether the level). The effect of the following figure:

3, correction wide-angle distortion.

is still just the page, then we can adjust the "remove distortion", "vertical Perspective", "horizontal perspective" to fine-tune, while the grid line with the alignment. Here it is necessary to explain, in the lens distortion dressing function, ps than the light magic hand to fine, the effect is more perfect. The modified effect is as follows:

4, such as proportional reduction.

First select the rectangular Marquee tool, then in the Style drop-down box, select fixed aspect ratio, and then fill in the corresponding Height-to-width ratio, as shown in the following figure:

At this point you can circle the picture you want to cut the range, and then click on the "image"-"crop" can be.

5, scale image size.

In order to post conveniently, we can scale the image processing. Select "Image"-"image size", modify the "width" (height proportional transformation), enter the desired value after the point is OK.

Finally we choose "File"-"store as", save the final picture can be, the following figure:

Equipment: Canon SX130 is [Canon digital camera]

Time: 2011-10-17 22:28:30+08:00 shutter: 1/18 aperture: f/3.4 focal length: 5 mm Sensitivity: 80

Although these functions are simple, but it is necessary to deal with the image of small skills, and sometimes can hear some of the camera complained about wide-angle distortion, in fact, as long as the heart, the intention to make, believe that these flaws are can be modified, the key is to see if you are intentions!

Category:

• PS Getting Started Tutorial