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basic:image_tools [2013/11/14 08:46]
henning_stummer [Transparency]
basic:image_tools [2015/09/03 11:51] (current)
penelope_chapron [Text]
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 ==== Image Enhancement ==== ==== Image Enhancement ====
  
-{{:​image_archive:​filter:​image-enhancement.png?​nolink }} The three sliders for “Brightness,” “Contrast,” and “Saturation,” act like those found on color television sets.  The entire color spectrum is affected.+{{:​image_archive:​filter:​image-enhancement.png?​nolink }} The three sliders for “Brightness”“Contrast”and “Saturation”act like those found on color television sets. The entire color spectrum is affected.
  
 **Note:** This filter changes colors linearly, which may lead to losses in the upper and lower color ranges. ​ Instead you may want to try the Exposure Correction tool which utilizes a more advanced algorithm preventing this undesired effect. **Note:** This filter changes colors linearly, which may lead to losses in the upper and lower color ranges. ​ Instead you may want to try the Exposure Correction tool which utilizes a more advanced algorithm preventing this undesired effect.
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 ==== Color Balance ==== ==== Color Balance ====
  
-{{:​image_archive:​filter:​color-balance.png?​nolink }} Selecting a specific color from the drop-down list and using the “Cyan-Red,” “Magenta-Green,” and “Yellow-Blue” sliders you can correctly balance a specific color channel individually.+{{:​image_archive:​filter:​color-balance.png?​nolink }} Selecting a specific color from the drop-down list and using the “Cyan-Red”“Magenta-Green”and “Yellow-Blue” sliders you can correctly balance a specific color channel individually.
  
 By selecting “All Colors” use the slider “Shadows-Highlights” for fine-tuning your color selection.  ​ By selecting “All Colors” use the slider “Shadows-Highlights” for fine-tuning your color selection.  ​
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 ==== Color ==== ==== Color ====
  
-{{:​image_archive:​filter:​color.png?​nolink }} The “Color” tool is used for tinting or adding overall color to an image. ​ It can be used to colorize grey images for example. ​ However, the correction of color problems in images is best done with the tools “Color Tuning” or “Hue, Saturation, Brightness.+{{:​image_archive:​filter:​color.png?​nolink }} The “Color” tool is used for tinting or adding overall color to an image. ​ It can be used to colorize grey images for example. ​ However, the correction of color problems in images is best done with the tools “Color Tuning” or “Hue, Saturation, Brightness”.
 ==== Despeckle ==== ==== Despeckle ====
  
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 ==== Text ==== ==== Text ====
  
-{{:​image_archive:​filter:​text.png?​nolink }} The Text Tool has a special ability. ​ It can place text into the image from direct input as well as from descriptor text.  One classic usage would be a copyright notice – taken directly from the data base.+{{:​image_archive:​filter:​text.png?​nolink }} The Text Tool has a special ability. It can place text into the image from direct input as well as from descriptor text.  One classic usage would be a copyright notice – taken directly from the data base.
  
-The upper section of the panel defines the text to be displayed. ​ The default insert text is the system descriptor “Copyright.”   The descriptor name is always bracketed with paired percentage (%) signs to look like this:  **<​nowiki>​%%descriptor%%</​nowiki>​**. ​ Descriptor values can be typed manually and bracketed so.  You can also click the “Insert” button and open the Insert Descriptor window which lets you conveniently choose from a list of available descriptors. ​ Of course, you will have to make certain that the “Copyright” field or any other descriptor field actually contains text.  Alternatively,​ you can simply type over the default descriptor with regular text input. ​ For multi-line text, type “\n” to force a line break. ​ Right-clicking in the Text field opens a contact menu via which you could alternatively access the Insert Descriptor window as well as the option to insert special characters+The upper section of the panel defines the text to be displayed. The default insert text is the system descriptor “Copyright. The descriptor name is always bracketed with paired percentage (%) signs to look like this:  **<​nowiki>​%%descriptor%%</​nowiki>​**. ​ Descriptor values can be typed manually and bracketed so. You can also click the “Insert” button and open the Insert Descriptor window which lets you conveniently choose from a list of available descriptors. ​ Of course, you will have to make certain that the “Copyright” field or any other descriptor field actually contains text.  Alternatively,​ you can simply type over the default descriptor with regular text input. ​ For multi-line text, type “\n” to force a line break. ​ Right-clicking in the Text field opens a contact menu via which you could alternatively access the Insert Descriptor window as well as the option to insert special characters.
  
-The middle section of the Text panel defines the font, style, shading, and shadow color. ​ Using the shadow effect is recommended for better readability when text is superimposed on an area with light and dark background. ​ The shadow color should be a strong contrast to the font color, for example use a black shadow for a white text color or vice versa.  ​+The middle section of the Text panel defines the font, style, shading, and shadow color. ​ Using the shadow effect is recommended for better readability when text is superimposed on an area with light and dark background. The shadow color should be a strong contrast to the font color, for example use a black shadow for a white text color or vice versa.  ​
  
-Font size remains constant for all picture sizes (thumbnail, zoomed, image viewer). ​ The text will only be scaled if it otherwise would not fit into the picture. ​ To turn this feature off, uncheck the box “Scale Text to Image Size.+Font size remains constant for all picture sizes (thumbnail, zoomed, image viewer). ​ The text will only be scaled if it otherwise would not fit into the picture. ​ To turn this feature off, uncheck the box “Scale Text to Image Size”.
  
 Further down you’ll find a slider. ​ With it you can seamlessly adjust the transparency of your text in the image. ​ Making copyright text somewhat transparent on, let’s say an art photograph, causes less visual disturbance,​ yet still remains readable. ​ Large text or a logo sprawled across the entire image in a watermark fashion discourages unauthorized “nabbing” of images from your web site, yet still permits a view of the image itself. Further down you’ll find a slider. ​ With it you can seamlessly adjust the transparency of your text in the image. ​ Making copyright text somewhat transparent on, let’s say an art photograph, causes less visual disturbance,​ yet still remains readable. ​ Large text or a logo sprawled across the entire image in a watermark fashion discourages unauthorized “nabbing” of images from your web site, yet still permits a view of the image itself.
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 {{:​image_archive:​filter:​invert-image.png?​nolink }} Using this tool’s slider converts your image into its negative opposite by exchanging the colors to their RGB-complementary opposite and inverting brightness. {{:​image_archive:​filter:​invert-image.png?​nolink }} Using this tool’s slider converts your image into its negative opposite by exchanging the colors to their RGB-complementary opposite and inverting brightness.
  
-**Note:** This tool can only be effectively used on black and white negatives. ​ Inverting color negatives results in an orange cast.+**Note:** This tool can only be effectively used on black and white negatives. Inverting color negatives results in an orange cast.
 ==== Find Edges ==== ==== Find Edges ====
  
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 ==== Invert Mask ==== ==== Invert Mask ====
  
-This tool inverts the transparency of an image. ​ Opaque areas become transparent and previously transparent areas become colored. ​ This tool produces many interesting effects and is fun to experiment with. +{{:​image_archive:​filter:​invert-mask.png?​nolink }} This tool inverts the transparency of an image. ​ Opaque areas become transparent and previously transparent areas become colored. ​ This tool produces many interesting effects and is fun to experiment with.
 ==== Smoked Glass ==== ==== Smoked Glass ====
  
-The Smoked Glass tool is useful where a lot of text is to be superimposed on an image making it easier to read.  The tool gives a defined area in the image a colorization as well as reduced transparency and added blurring, reminiscent of smoked glass.+{{:​image_archive:​filter:​smoked-glass.png?​nolink }} The Smoked Glass tool is useful where a lot of text is to be superimposed on an image making it easier to read.  The tool gives a defined area in the image a colorization as well as reduced transparency and added blurring, reminiscent of smoked glass.
 ==== Simple Backdrop ==== ==== Simple Backdrop ====
  
-A transparent or semi-transparent image can be given a colored background with this tool.+{{:​image_archive:​filter:​simple-backdrop.png?​nolink }} A transparent or semi-transparent image can be given a colored background with this tool.
 ==== Emboss ==== ==== Emboss ====
  
-The Emboss tool adds a three-dimensional feel to your image that gives the illusion as if it had been embossed. ​+{{:​image_archive:​filter:​emboss.png?​nolink }} The Emboss tool adds a three-dimensional feel to your image that gives the illusion as if it had been embossed. ​
basic/image_tools.1384436773.txt.gz · Last modified: 2013/11/14 08:46 by henning_stummer