Class Bitmap

Creates a Bitmap instance with optionally initialized pixels.

Creates a Bitmap instance with optionally initialized pixels.

Returns true if all pixels in the image are either black or white.

Gets the current BmpContext for this Bitmap.

Determines whether the image contains only opaque grayscale pixels.

Gets the height of the bitmap, in pixels.

Gets the width of the bitmap, in pixels.

Creates a bitmap with glow effect from the current image. The glow effect inflates all non-transparent areas of an image by a specified amount, then applies a Gaussian blur to make the border smooth. The effect appears only if some pixels of the current image are transparent or semi-transparent.

Creates a bitmap with shadow from the current image. The shadow appears only if some pixels of the current image are transparent or semi-transparent.

Adjusts the levels of an image histogram. The method maps the input range of values (blackPoint..whitePoint) to the output range (outputBlack..outputWhite) using the specified gamma correction (midtone).

Draws the source bitmap with the specified opacity into the current Bitmap.

Applies a bi-level transparency mask to the current image or its portion.

Applies the in-place effect that converts a monochromatic (grayscale) image to bi-level image using Bradley and Roth's method of adaptive image thresholding.

Applies the in-place effect that updates the image brightness and contrast.

Applies the in-place effect that converts a monochromatic (grayscale) image to bi-level image with two-dimensional error diffusion dithering.

Applies the in-place effect that applies gamma correction to the image.

Applies the in-place effect that applies a Gaussian blur to the image.

Applies the in-place effect that converts an image to monochromatic gray.

Applies a grayscale transparency mask to the current image or its portion.

Applies the in-place effect that alters the hue of an image based on the rotation angle.

Applies the in-place effect that sets the alpha channel to the luminance of the image and sets the color channels to 0.

Applies the in-place effect that adjusts the opacity of an image by multiplying the alpha channel of the input by the specified opacity value.

Applies the in-place effect that converts a monochromatic (grayscale) image to bi-level image using Otsu's method of clustering-based image thresholding.

Applies the in-place effect that alters the saturation of an image.

Applies the in-place effect that converts an image to sepia tones.

Applies a soft edges effect to the current image. The soft edges effect deflates all non-transparent areas of an image by a specified amount, then applies a Gaussian blur to make the border smooth.

Applies the in-place effect that alters the temperature and tint of an image.

Modifies R, G, B color intensities such that the maximum range of values (0..255) is fully covered.

Performs a bit-block transfer of the color data corresponding to a rectangle of pixels from the specified source bitmap into the current Bitmap.

Clears the whole Bitmap or its part with specified color.

Creates a new Bitmap with a fragment of the image.

Creates a new Bitmap with a copy of the image.

Applies the algorithms of Porter Duff compositing and blending to the current Bitmap (used as backdrop, destination) and the source Bitmap.

Converts an image with transparent or semitransparent pixels to fully opaque with specified background color.

Copies data from one color channel of the current Bitmap to an existing GrayscaleBitmap of the same pixel size.

Produces a flipped (horizontal or vertical) and/or rotated (by 90 degree increments) bitmap. The source Bitmap remains unchanged.

Returns the coordinates of a rectangle with colors different from backColor.

Determines whether the image contains transparent or semitransparent pixels.

Copies data from a GrayscaleBitmap to one color channel of the current Bitmap of the same pixel size.

Creates a BmpContext for the current Bitmap and optionally fills it with a background color.

Creates a new Bitmap with a resized image fragment. The source Bitmap remains unchanged.

Saves the Bitmap as an array with JPEG-encoded image data.

Saves the Bitmap as a JPEG-encoded Image.

Saves the Bitmap as an array with PNG-encoded image data.

Saves the Bitmap as a PNG-encoded Image.

Creates a BilevelBitmap from the current Bitmap. This method does not perform any transformations of the color palette. It is expected that the source Bitmap has already been converted to bi-level palette using some thresholding or dithering effects. The toBilevelBitmap method just copies data from a specified color channel to a new instance of the BilevelBitmap class.

Creates a GrayscaleBitmap from the current Bitmap. This method does not perform any transformations of the color palette. It is expected that the source Bitmap has already been converted to grayscale palette using the Bitmap#applyGrayscaleEffect or something like that. Alternatively, you can use this method to extract individual channels of a color image without any prior conversion, and treat the resulting GrayscaleBitmap simply as a representation of some image data with 8 bits per pixel. The toGrayscaleBitmap method just copies data from a specified color channel to a new instance of the GrayscaleBitmap class.