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Thread: "Cropping"

  1. #1
    Join Date
    Oct 2001
    Location
    Sarasota, Florida, USA
    Posts
    62

    Default

    No, I'm not a farmer!
    I have begun using Xara to create graphics for the websites I design at work. I need to know what is the best way to "crop" images?

    I have used the technique of placing a shape over my desired image, selecting the shape and the image, then intersecting them. However, many times I get a fuzzy edge when I save as a bitmap
    (gif or jpg, but I don't see it until it is on the website. I end up taking the raster image into ImageReady and using its crop tool.

    My goal is to eventually do everything graphically possible in Xara for my web design, but I keep having to fall back onto my "Adobe" crutches!

    Any tips or tutes out there for me?

    Many thanks!

    Gary V.
    "I'm not an artist, but I play one on the internet!"

  2. #2
    Join Date
    Oct 2001
    Location
    Sarasota, Florida, USA
    Posts
    62

    Default

    No, I'm not a farmer!
    I have begun using Xara to create graphics for the websites I design at work. I need to know what is the best way to "crop" images?

    I have used the technique of placing a shape over my desired image, selecting the shape and the image, then intersecting them. However, many times I get a fuzzy edge when I save as a bitmap
    (gif or jpg, but I don't see it until it is on the website. I end up taking the raster image into ImageReady and using its crop tool.

    My goal is to eventually do everything graphically possible in Xara for my web design, but I keep having to fall back onto my "Adobe" crutches!

    Any tips or tutes out there for me?

    Many thanks!

    Gary V.
    "I'm not an artist, but I play one on the internet!"

  3. #3
    Join Date
    Oct 2001
    Location
    Merricks North, Victoria, Australia
    Posts
    111

    Default

    but, perhaps you could try cropping the graphic on the same colour background that you will be exporting the graphic to.

    I know that you need to do this when creating transparent GIFs or you get a fuzzy edge. Perhaps this is true of cropping too. It's worth a try.

    J [img]/infopop/emoticons/icon_razz.gif[/img]

  4. #4
    Join Date
    Aug 2000
    Location
    Harwich, Essex, England
    Posts
    21,895

    Default

    As well as wyccaad's point above another cause of the fuzzy edges may be that the intersecting shape is not a complete pixel size. Ensure that the intersect shape is an exact number of pixels and see if this removes the fuzziness.
    Egg
    Egg

    Intel i7 - 4790K Quad Core + 16 GB Ram + NVIDIA Geforce GTX 1660 Graphics Card + MSI Optix Mag321 Curv monitor
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  5. #5
    Join Date
    Aug 2000
    Location
    Placitas, New Mexico, USA
    Posts
    41,487

    Default

    WebXealot 31

    There is a complete list of just about everything you want to know in the XaraXone WebXealots. And they are all categorized by subject matter.

    Gary

    Gary Priester

    Moderator Person

    <a href="http://www.gwpriester.com">
    www.gwpriester.com </a>

    http://www.thuntek.net/gwp/flag.png

  6. #6
    Join Date
    Aug 2000
    Location
    Raleigh, NC USA
    Posts
    248

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    If not using Alpha Channels, my favorite way is to:
    - turn on Snap to Grid
    - place rectangle over the area to saved
    - set fill to none & adjust size to desired crop
    - set line to no color
    - Export Selection

    Wish Xara didn't default to Alpha Channel ON. Does anyone know how to change this default?

  7. #7
    Join Date
    Oct 2001
    Location
    Merricks North, Victoria, Australia
    Posts
    111

    Default

    What's an Alpha Channel please?

    J [img]/infopop/emoticons/icon_confused.gif[/img]

  8. #8
    Join Date
    Oct 2000
    Location
    Wiesbaden, Germany
    Posts
    419

    Default

    an alpha channel is an additional channel to the three or four color channels your artwork consists of. the alpha is the transparency channel. so the darker parts in the alpha channel are more transparent and the lighter less.

    cu

    FLySOLO

  9. #9
    Join Date
    Dec 2000
    Location
    the twilight zone
    Posts
    1,238

    Default

    When you have one bit for every pixel, this pixel can be black (=no light) or white (=light) on your monitor. When you have 8 bits, this same pixel can have 256 diffent intensities of light. These are numbered 0 for black to 255 for pure white.
    On a black and white monitor, or monitor setting, you get 256 greyscale values.
    A colour monitor works with three different colours to build up light, and every colour can be set to 256 different intensities. These colours are Red, Green and Blue (RGB). The specific value of each colour is added to the result colour. So if all three of the "channels", because that is how they are called, are at full power, you get white light. And if red and blue are off (at zero) you get green at the intensity it is set.

    The same for printing, only there the colour has to be printed with a mixture of small dots from the screening. The colours that are mostly used are Cyan, Yellow, Magenta. In the ideal circumstances, you should be able to make all colours with these, but because of the imperfection of the pigments, you need to add Black ink to get a (unfortunately still) washed out view of what you see on your monitor.

    Sometimes in print, when you need really specific colours that can't be mixed, you need to add what is called a spot colour. This information is stored in yet another channel that is called "Spot Channel".

    You can also make masks to cover up some areas that you don't want to include or work with. These are saved as selections in yet another channel called "Alpha Channel". This makes some parts transparant, and some opaque.

  10. #10
    Join Date
    Nov 2000
    Location
    Surrey, UK
    Posts
    440

    Default

    My favorite way to crop is to copy my file (so I have a back up) Then:

    Select and group everything. (this puts everything in the top layer of those you grouped)

    create another layer and draw a shape that you want your crop to be. It can be anything.

    Cut this shape and paste it into your grouped layer.

    Still selected send your shape to the bottom and change the line and fill to nothing.

    Still selected select all.

    Apply clip view.

    Have a nice cup of tea.

    Huge regards
    Dave

 

 

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