Tools of Photoshop

Tools of cut and selection. 

Tool of cut:

The tool "cut" serves, like its name indicates it, to cut an image. 

In the bar of tools you can select the resolution and the size of the cut; Later, with the mouse, you draw the "framework" of the new image. 

You can move this framework to elect the zone on the one that to do the setting and, when be ready, do double click with the mouse for trim. 

This tool is very useful to adapt the size of the images to the impression. For example, the standard size is 10 x 15 cm. If in the options of the tool to trim you select these measures will be able to adapt the size of the photography to this format. 

selection tool.

selections inside the image. When your have fact a selection inside the image, any tool that your utilize will apply only inside the selection. This is very useful, since normally only you will need to retouch part of the image and, with the selections, the touch results more exact. Several tools of retouch exist, I mentioned how the more simple retouch tools are used.

Selections of framework.

The first one is called "tool of rectangular framework" and serves to do a selection with this form. Only one must do click with the mouse and to drag until obtaining the size that desire. If you maintain tight the key The selection will be regular and will have form of square. The "tool of rectangular framework" has associates other tools that are hidden. One of them is the "tool of elliptic framework", that functions in the same way, but doing a selection in the shape of ellipse, or of circle if the key is utilized at the same time.

These tools are very easy to use, but only they are efficient when we have geometric forms.

Magic Wand

This tool serves to select zones of a same color or with a tone seemed. It is very useful when in an image a continuous fund appears or a uniform sky but otherwise this tool does not serve of great aid. 

Tie Tool

The tool of tie serves to draw a selection by hand raised. It is utilized doing click with the mouse and dragging it on the zone that we want to select. To finish a done selection with this tool, is done double click with the mouse. 

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Tags: measures, images, desire, shape, double click, new image, sky, magic wand, selection tool, photography, ellipse, geometric forms, tools of cut, retouch tools, tool selections, format selection

Learn Photoshop Now .. 10 Helpful Photoshop Timesavers

Learn Photoshop Now .. 10 Helpful Photoshop Timesavers

1) Auto-Select a Layer - Hold down the Cmd/Ctrl key and at the same time click on a layer in the main image window in Photoshop. 

2) Remove Color - Removing all color from an image without going into grayscale mode simply press Shift Cmd/Ctrl U ('Desaturate') while still in RGB mode to make your image grayscale. Another option is to use the channel mixer which will actually create a better result. In this option, all you need to do is click on the Grayscale option. 

3. Press Cmd/Ctrl J to copy a selection into its own layer. Press Shift Cmd/Ctrl J to cut and move a selection. 

4. Press Ctrl/Cmd H to hide the 'marching ants' (selection marquee). 

5. If you are using the Lasso Tools, and want to set a

feather, just press the Return/Enter key and the Feather

field in the Options palette will highlight and you can

enter or change the value. 

6) Color Fill - Press Alt/Option Delete to fill a layer or

area with the color in the forefront. To fill a layer or 

selection with the background color, press Cmd/Ctrl Delete.

7. Press the [ ] keys to change the brush size.  By holding

the shift key down and pressing the [and]keys, the brush will get softer and harder, respectively. You can adjust the

level up to five times. 

8. If your version of Photoshop is without the Spot Healing Brush, double click on the Blur Tool and in the Options palette, decrease the opacity to 15% and change the mode to Lighten to remove the undesired scratches and blemishes.  When you paint over these marks, they will disappear before

you eyes. 

9. To draw a straight line with any of the brush tools,

just click, hold the Shift key, and click again where you

want the line to end. Photoshop will draw a straight line

between the two points! This trick also works with most

tools, including erasers and even the highlight tool in the

Extract filter. 

10. In the Layers palette, when you choose Duplicate Layer, you can change the document setting to 'New' to create a brand new picture from any layer.

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Bits and Pixels in Photoshop

Bits and Pixels in Photoshop

The article on this site titled Pixels and Resolution in Photoshop explains that a pixel is a small square of digital information. The pixels are laid out in a mathematical grid and so do not deteriorate when copied – the mathematical pattern is just reconstructed. Now we'll look further into what this means in terms of image size and quality.A bit is a unit of colour information. A 1 bit pixel has two choices. In the computer binary system, it can be 1 or 0, on of off. In practice it can be black or white. In simplistic graphic terms, imagine a pixel as a rod with the colour on the end, so this 1 bit pixel can only represent black or white.An 8 bit pixel has greater pixel depth or bit depth and can contain and display much more colour information. 

As each bit has two choices, 8 bits have 2x2x2x2x2x2x2x2 or 256 choices. So 8 bits means 28 or 256 colours. A complete image which is only an 8 bit pixel image is likely to be a greyscale or an indexed colour image. A colour image in this category will have 8 bits on each of the red, green and blue channels.The total pixel content of the image combine to make the file size. An 8 bit pixel uses one 'byte' of computer memory and a thousand bytes amount to one 'kilobyte' of memory.The greater the bit depth or pixel depth in this 'rod' of digital information, the greater will be the number of colours and information stored. 

Therefore, the digital image will give a more accurate representation of the original. Photoshop CS can handle most functions in 16 bits per channel, or a 48 bit image. Earlier versions of Photoshop can handle only a limited range of tasks in 16 bit, while Elements will work in an 8 bit per channel image.Many scanners can scan film in 16 bit per channel mode and this will capture considerably more information and hence more colours, tones and details. In actual fact, Photoshop works in 15 bit + 1 unit, which amounts to 215. This produces 32,769 values, which is still considerably more than in standard 8 bit mode.Open an image.

At the top of the image frame, it is likely to say RGB/8, indicating RGB Color Mode in 8 bit.

Go to Image > Mode and you will see there is a tick by 8 Bits / Channel. Drop down to 16 Bits / Channel.This does not make the image true 16 bit but it's only for illustrative purposes.

Click on the different menu items in the top menu bar and you will see that some of them are greyed out, particularly with the Filters, meaning they will not function in 16 bit mode. However, all the Adjustments under Image are available which means doing colour and tonal corrections on a 48 bit image is a great advantage – more tones will be retained. 

Summary

8 bits per channel give 256 colours per channel, and an RGB image of 24 bit

16 bits per channel give 32,769 colours per channel, and an RGB image of 48 bit

Duncan Wherrett is a professional photographer and Photoshop instructor.Photoshop In A DayMore Photoshop articles can be found at 

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A Try: From PSD to HTML

A Try: From PSD to HTML

As a web designer you're working with Photoshop all day and night to give your creativity a life. Now you want to convert your PSD files (jpg, png or any other format that Photoshop is capable of reading) in a valid and CSS/ (X) HTML. 

If you are going through the routine practice of first going to File / Save for the web, everything gets converted to image, but the worst part is that this page is generated in nested tables. Those who are experienced of working in nested tables in HTML know very well what could be the problems through which he/she may pass. For example, just make a small change to text within a cell and it becomes unable to find the right configuration. 

There is also a mode that allows you to transform everything in div or division. First open the file with Photoshop and tweak with ImageReady. Then go from the file menu and edit in ImageReady. 

Subsequently cut your document using the option "slice". This will allow you to define all the different parts of your web page (for example, the header, menu, etc.). This will separate the images into numerous lines and blue squares numbered. 

Now you need the output parameters: go to the File menu / output setting and select the following parameters:

Preset: custom preset: custom  

 

Slice output: generate CSS, referenced: by ID slice output: generated CSS, referenced: by ID (This will convert the slices into pictures along with coding) 

Now that we have defined the output options, click on OK. (This validates the settings, but doesn’t create the file yet). So you must save the result, using "Save optimized" (inside the File menu). 

In this way ImageReady has created the "images" containing all the pictures and a cut above contains an HTML file that is in the source code of the CSS. 

If you want to view, copy, modify the CSS or the source, code is sufficient to open the file in your favorite browser and view the source code. 

The job is done; image ready will create an “image” folder with all the sliced images and HTML file containing all source codes. 

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