Filter

[Filter] Menu: Any filter-related operation
Apply various filter effects to the active layer. If there is a selection, the filter will be applied only to the image within the selection.

Levels

The brightness of the image can be adjusted with [Input] and [Output] bars.

[Levels] dialog box

①Histogram
This graph shows the quantity of pixels in the image for each RGB value. The horizontal axis shows the value (level : 0-255) and the vertical axis shows the quantity of pixels.
②Input
Shadow, midtone, and highlight levels can be set with reference to the histogram.
The left slider refers to the shadow level settings.The slider to the left is default as level 0 (black), so moving it to the right will darken the image.
The slider on the right refers to the highlight level settings.The slider to the right is default as level 255 (white), so moving to the left will brighten the image.
The center slider moves in connection with the left or right slider when they are moved. Users can freely move it within the range between the left and right sliders to set the midtone level. Move it to the left to darken the image and to the right to brighten it.
③Output
Adjust the upper and lower limits of the level of the image. The histogram of the image will output RGB values in the range between the left and right sliders. Moving the right slider to the left darkens the image because the level is limited to a range close to 0, and moving the left slider to the right brightens the image because the level is limited to a range close to 255.

Original

Move the left slider of [Input] to the right

Move the right slider of [Input] to the left

Move the right slider of [Output] to the left

Move the left slider of [Output] to the right

Brightness/Contrast

The brightness and contrast of the image can be adjusted.

[Brightness/Contrast] dialog box

[Brightness]：Designate the brightness value. Positive values make the image brighter, negative values make the image darker.
[Contrast]：Designate the contrast value. Positive values increase the image contrast. Negative values decrease the image contrast and bring it closer to gray.

When [Preview] is checked, the filter applied to the image will be displayed.

Original

Brightness : -100

Brightness : +100

Contrast : -50

Contrast : +100

Hue

Users can adjust the hue, saturation, and brightness.

[Hue Saturation Brightness] dialog box

Hue：Designate the hue values of the colors in the image, so that a positive value moves the hue ring to the right and a negative value moves it to the left. Value in 180 will reverse the hue.
Saturation：Designate the saturation value.As the value approaches 100, the image becomes more vivid. -100 value will remove the saturation, resulting in a grayscale image.
Brightness：Designate the brightness value. Positive values make the image closer to white, and negative values make it closer to black.

Original

Hue : -100

Hue : +100

Saturation : -100

Saturation : +100

Brightness : -50

Brightness : +50

Tone Curve

Users can adjust the brightness, color tone, and contrast of an image by moving the curve.

[Tone Curve] dialog box

①Moving the curve up makes the image brighter, while moving it down makes it darker. The upper right of the graph corresponds to the brighter areas of the image, and the lower left corresponds to the darker areas.
②Users can select the channel from RGB, R, G, and B.
③Reset: Initialize curves for all channels.

Original

Curve S

Reverse Curve S

Posterization

Posterization effect limits the number of tones in an image and reduces the number of colors.

[Posterization] dialog box

Steps：Designate the number of posterization steps. The smaller the [Steps] are, the stronger the effect is. Default value set as 4.

Original

After execution ( Steps: 7 )

Gradient Map

Replaces the colors in the image with colors of a gradient, which depends on the lightness or darkness of each color.

[Gradient Map] dialog box

①List of gradients
②Add a Gradient : Add new gradient.
③Duplicating a Gradient : Duplicate the selected gradient.
④Remove Gradient : Remove the selected gradient.
⑤Export Gradient to a File : Export the selected gradient as an MDG file.
⑥Import Gradient from a File : Import the MDG file and adds a gradient.
⑦Name : edit a name for the gradient.
⑧Draw Type : Can’t select in the gradient map.
⑨Spread : Can’t select in the gradient map.
⑩Hue Adjustment : Change the hue of the selected gradient.
⑪Repeat Num : Specify the number of times to repeat the selected gradient.
⑫Displays the color information of the selected gradient.
⑬Add Anchor (Right) : Adds a control anchor to ⑫.
⑭Remove Anchor : Removes a selected control anchor on ⑫.
⑮Invert : Reverse the selected gradient.
⑯Anchor Settings

　❶Specifies the color of the anchor.
　❷Opacity : Specifies the opacity of the anchor.
　❸Interpolate : Specifies how to interpolate gradient colors.
　❹Apply to all points : The color interpolation method of the selected anchor is applied to all anchors.

⑰Restore Settings : Discard edits.
⑱Set as Default : The edited content will be synchronized as the initial setting of the selected gradient.

Original

Gradient : [Fireplace]

Negative-Positive Inversion

Reverses the negatives and positives of an image.

Original

After execution

Monochrome (Brightness)

Convert the image to monochrome to monochrome based on luminosity.

Monochrome (RGB Average)

Convert the image to monochrome based on the average of the RGB values of the image.

Original

Monochrome (Brightness)

Monochrome (RGB Average)

Channel Operation

Adjust the color balance of the image based on the channel.

[Channel Operation] dialog box

①[A]・[R]・[G]・[B] : Designate the value to be applied to each channel of the image.
②Reset : Reset all parameters to their initial values.
③Preset : Value of those below can be designated; [R Component]・[G Component]・[B Component]・[Line Extraction]・[Monochromatization]

Original

A=A, R=R, G=G, B=255-A

Preset [R Component]

Chromatic Aberration

shift The RGB of the image.

[Chromatic Aberration] dialog box

The X bar allows users to adjust the movement in the vertical direction; the Y bar is for the horizontal direction. Default value set as 5.

Original

X : +5, Y : +5

Unsharp Mask

Increases the contrast of pixels in an image and applies a sharpening effect.

[Unsharp Mask] dialog box

Radius : Designate the width of the contrast boundary.
Amount : Designate the strength of contrast.

When [Preview] is checked, the filter applied to the image will be displayed.

Original

Radius : 2.04, Amount : 300%

Gaussian Blur

Apply the Gaussian Blur effect to the image.

[Gaussian Blur] dialog box

The larger the [Value] is, the stronger the blur it will be.

When [Preview] is checked, the filter applied to the image will be displayed.

Original

After execution( Value : 2.04 )

Motion Blur

Apply a blur effect to the image based on the direction and amount of motion.

[Motion Blur] dialog box

①Specify the direction of blur.
②Intensity : Specifies the amount of blur in pixels.

When [Preview] is checked, the filter applied to the image will be displayed.

Original

Direction of movement : horizontal, Intensity : 50

Lens Blur

Apply the Lens Blur effect to an image. This is suitable when you want to emphasize light effects more than [Gaussian Blur].

[Lens Blur] dialog box

Radius : Specify the blur intensity.
Brightness : Specify the brightness of the color of the bright areas.

When [Preview] is checked, the filter applied to the image will be displayed.

Original

Radius : 2.01, Brightness : 4.00

Mosaic

Apply a mosaic effect to the image.

[Mosaic] dialog box

Size : Specify the mosaic block size in pixels. The default value is set as 16.

Original

Size : 10

Extracting Lines

Set the contrast of the image in the same way as [Input] in [Levels] and extract only the alpha value.

[Extracting Lines] dialog box

Original

After execution

Cloud

Draws a cloud pattern using the current foreground color and background color.
Create a cloud pattern with a black foreground color and a white background color, and change the blending of the layer to [Overlay] to use it as a texture layer.

After execution (foreground color : black, background color : white)

Sand

Draws a sand pattern using the current foreground color and background color.
Create a sand pattern with a black foreground color and a white background color, and change the blending of the layer to [Overlay] to use it as a texture layer.

After execution (foreground color : black, background color : white)

Japanese Pattern

Draw a Japanese pattern using the current foreground color and background color.

[Japanese Pattern] dialog box

①Name : Select the type of Japanese pattern.
②Select the type of Japanese pattern from thumbnails.
③Size : Designate the size of the pattern.
④Angle : Designate the angle of the pattern.
⑤Density : Density of the pattern can be adjusted only when [Polka Dot] is selected.
⑥Transparent Background : create pattern with foreground color only.
⑦Color Exchange : Exchange the foreground color and background color.
⑧Random Color : Change to a random color.

List of Japanese patterns

・Sea (Seigaiha)

・Sea (Hishi Seigaiha)

・Sippou

・Sippou 2

・Sanki Kuzushi

・Arrow (Yagasuri)

・Arrow 2 (Yagasuri)

・Scale (Uroko)

・Hound’s Tooth

・Polka Dot

・Suri Bitta

・Turtle (Kikkou)

・Checker Board

・Asanoha

・Tatewaku

・Hundou Tsunagi

・Sayagata

・Vertical Stripes

・Horizontal Stripes

Noise

Apply noise effect to the image.

[Noise] dialog box

Strength : Designate the noise intensity. The default value is set as 50.
Type : Users can select the noise type as [Color] or [Monochrome].

Original

Strength : 50, Type : Color

Strength : 50, Type : Monochrome

Line (Concentrated)

Draws a concentration line.

[Concentrated Lines] dialog box

①Specify Center : Designate the center of the concentration line.
②Length : Adjust the length of lines.
③Length (Random) : Adjust the length of lines randomly.
④Line Width : Adjust the thickness of lines.
⑤Density : Adjust the space between lines.
⑥Density (Random) : Adjust the density of lines randomly.
⑦Aspect Ratio : Adjust the the overall shape of the concentration line.
⑧Reset : Reset all parameters to their initial values.
⑨Update Randomness : Renew the random parameters.

Example

Line (Parallel)

Draws streamlines.

[Parallel Lines] dialog box

①Specify Direction : Designate the direction of lines.
②Length : Adjust the length of lines.
③Length (Random) : Adjust the length of lines randomly.
④Line Width : Adjust the thickness of lines.
⑤Density : Adjust the space between lines.
⑥Density (Random) : Adjust the density of lines randomly.
⑦Reset : Reset all parameters to their initial values.
⑧Update Randomness : Renew the random parameters.

Example

Line (Sea Urchin Flash)

Draws sea urchin flush.

[Sea Urchin Flash] dialog box

①Length : Adjust the length of lines.
②Length (Random) : Adjust the length of lines randomly.
③Line Width : Adjust the thickness of lines.
④Density : Adjust the space between lines.
⑤Density (Random) : Adjust the density of lines randomly.
⑥Offset (Random) : Adjust line misalignment.
⑦Fade In/Out Pos : Designate the plate for Fade In/Out Pos.
⑧Reset : Reset all parameters to their initial values.
⑨Update Randomness : Renew the random parameters.

Example