Name 

Description 

 

ConvertBitonalToGrayScale 

Converts bitonal images to an enhanced 8-bits gray-scaled indexed color image.
The color table has 256 entries.  

 

ConvertTo1Bpp 

This is the overview for the ConvertTo1Bpp method overload. 

 

ConvertTo1BppFast 

Like the ConvertTo1Bpp() function but without applying pixel color reduction.
Use this function to convert a black and white image to 1 bit per pixel color palette.
The color table has 2 entries: 1 Black & 1 White.  

 

ConvertTo1BppLum 

Converts a GdPicture image to a 1-bit BW indexed color image. This function calculates the luminance of each pixel before applying the conversion. The color table has 2 entries: 1 Black & 1 White.  

 

ConvertTo16BppRGB555 

Converts a GdPicture image to a 16-bits RGB555 color image.
5 bits each are used for the red, green, and blue components. The remaining bit is not used.  

 

ConvertTo16BppRGB565 

Converts a GdPicture image to a 16-bits RGB565 color image.
5 bits are used for the red component, 6 bits are used for the green component, and 5 bits are used for the blue component.  

 

ConvertTo24BppRGB 

Converts a GdPicture image to a 24-bits color image.
8 bits each are used for the red, green, and blue components.  

 

ConvertTo32BppARGB 

Converts a GdPicture image to a 32-bits ARGB color image.
8 bits each are used for the alpha, red, green, and blue components.  

 

ConvertTo32BppPARGB 

Converts a GdPicture image to a 32-bits PARGB color image.
8 bits each are used for the alpha, red, green, and blue components. The red, green, and blue components are premultiplied, according to the alpha component.  

 

ConvertTo32BppRGB 

Converts a GdPicture image to a 32-bits RGB color image.
8 bits each are used for the red, green, and blue components.  

 

ConvertTo48BppRGB 

Converts a GdPicture image to a 48-bits RGB color image.
16 bits each are used for the red, green, and blue components.  

 

ConvertTo4Bpp16 

Converts a GdPicture image to a 4-bits indexed color image using a standard color palette.
The color table has 16 entries.  

 

ConvertTo4BppPal 

Converts a GdPicture image to a 4-bits indexed color image using custom color palette.
The color table has a maximum of 16 entries.  

 

ConvertTo4BppQ 

Quantizes & converts a GdPicture image to an 4-bits indexed color image.
The color table has a maximum of 16 entries.  

 

ConvertTo64BppARGB 

Converts a GdPicture image to a 64-bits ARGB color image.
16 bits each are used for the alpha, red, green, and blue components.  

 

ConvertTo64BppPARGB 

Converts a GdPicture image to a 64-bits PARGB color image.
16 bits each are used for the alpha, red, green, and blue components. The red, green, and blue components are premultiplied according to the alpha component.  

 

ConvertTo8Bpp216 

Converts a GdPicture image to a 8-bits indexed color image using a standard color palette.
This function uses an automatic segmentation components algorithm.
The color table has a maximum of 256 entries but only 216 will be used.  

 

ConvertTo8BppGrayScale 

Converts a GdPicture image to an 8-bits gray-scaled indexed color image.
This function uses a basic grayscale color reduction algorithm.
The color table has 256 entries.  

 

ConvertTo8BppGrayScaleAdv 

Converts a GdPicture image to an 8-bits gray-scaled indexed color image.
This function uses an advanced grayscale color reduction algorithm.
The color table has 256 entries.  

 

ConvertTo8BppQ 

This is the overview for the ConvertTo8BppQ method overload.