# Batch Effects

One of the options available through the right-click menu is "Batch effects". This allows you to select multiple files and do things like add your website location or scale their sizes automatically instead of opening each image individually. To use them simply select all the images you wish to apply the effect to, use either the right mouse button or the Edit menu to get to the "Batch Effects" menu, then select the effect you wish to apply. These include:

### Transform Effects

- Scale to max size...
A feature oriented towards webmasters, this option scales down all the selected images to a maximum width and height. If the image is already less than or equal to the requested size it is unaffected. Also note that the aspect ratio of all the images is retained, the "Maintain aspect ratio" checkbox on this dialog is only used when selecting the maximum size.

The Scale image dialog

- Flip Horizontal, Flip Vertical
This flips the image horizontally or vertically
- Rotate 90, 180, or 270 degrees
Rotates the image by the specified degrees.

### Enhance Effects

- Spiff, Dull
Spiffs or Dulls the image. This is an HSV contrast enhancement.
- Equalize
Performs histrogram equalization on the image.
- Normalize
Normalizes the pixel values to span the full range of color values.
- Invert
Inverts all the pixel colors.
- Grayscale
Grayscales the image.

### Normal Effects

- Add text...
This is another feature aimed primarily at webmasters who deal with a lot of photos. It can add text to multiple images using any color or font, in either the center, top left, top right, bottom left, or bottom right edges of the image. Before applying this effect make sure that the text color will be visible on all the destination images. For example, just because white text is visible on your dark nightime clubbing shots doesn't mean it will be visible against a white indoors wall.

The Add text dialog

- Add border...
Adds a border around the image. You can select the colors to use, the frame width, and 4 different styles: Solid, Beveled, Liquid, and Round Corners.

The borders dialog.

- Add Noise...
Adds random noise to the image. You may select from 4 different algorithms.
- Despeckle
Minimizes speckle noise.
- Emboss
Produces a raised, metallic effect.
- Sharpen, Blur
Sharpens or blurs the image.
- Threshold
Lets you specify a threshold value. All pixels below the threshold turn black, all the pixels above turn white.
- Edge Detect
Detects lines and edges in an image.
- Spread
Spreads and displaces the pixels by a specified amount.
- Shade
Emulates shading by a distant light source.

### Special Effects

- Solarize
Produces an effect seen when exposing photographic file to light during the development process.
- Swirl
Swirls the pixles in an image.
- Implode
Implodes an image, making it seem like the pixels are being sucked into the center.
- Wave
Displaces pixels along a sine wave.
- Oil Paint
Produces an oil painting effect.
- Charcoal Draw
Produces a charcoal or chalk effect.

### Interactive Preview Mode

Once you have selected the effect and supplied any parameters it may need you will be presented with a dialog box asking if you wish to preview effects before applying them. If you select "Yes" you will get to preview the effect for each image and select if to accept it, skip it, or cancel all the pending effects. Otherwise PixiePlus will use non-interactive mode and you will just get a progress indicator and a cancel button.

The interactive effect dialog doing grayscaling.

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