#include "l_bitmap.h"

L_LTIMGEFX_API L_INT L_CubismBitmap(pBitmap, uSpace, uLength, nBrightness, nAngle, crColor, uFlags)

Remaps the bitmap into a collection of rotated rectangles (cubic faces) so that it appears to have been created in the Cubist art style.



Pointer to the bitmap handle referencing the bitmap to be changed.

L_UINT uSpace

Space between cubes, in pixels. As uSpace decreases the concentration of cubes increases and vice versa. The valid range is from 1 to the image or region dimension (that is, min(Height, Width))

L_UINT uLength

Cube side length, in pixels.

L_INT nBrightness

A value that indicates the brightness of the bitmap. This value can be a number between -1000 and 1000. Negative values darken the image and positive values lighten the image.

L_INT nAngle

The cubes angle of orientation, in hundredths of a degree (+/-). This value is ignored if the CUB_RAND flag has been set in uFlags. Possible values are from36000 to 36000.


The COLORREF value that specifies the background color. This value is ignored if the CUB_BKG flag has been set in uFlags.

L_UINT uFlags

Flags that indicate the background color, cube shape and cube orientation. You can use a bit wise OR (|) to specify one flag from each group.

Value Meaning
Background color:
CUB_BKG [0x0001] Use the image itself as the background.
CUB_COLOR [0x0002] Use the color in the crColor member as the background color.
Cubes shape:
CUB_SQR [0x0010] Cubes will have square shape.
CUB_RECT [0x0020] Cubes will have rectangular shape.
Cubes orientation:
CUB_RAND [0x0100] Cubes will have random orientation.
CUB_ORNT [0x0200] All cubes will have the orientation specified by the nAngle value.


Value Meaning
SUCCESS The function was successful.
< 1 An error occurred. Refer to Return Codes.


This function does not support signed data images. It returns the error code ERROR_SIGNED_DATA_NOT_SUPPORTED if a signed data image is passed to this function.

This function remaps the bitmap into a collection of rotated rectangles (cubic faces), producing an image in a Cubist style.

For an example, click here

To obtain this effect, the following settings were used with the function:

uSpace = 5
uLength = 10
nBrightness = 0
nAngle = 0
crColor = RGB(0,0,0)

This function supports 12 and 16-bit grayscale and 48 and 64-bit color images. Support for 12 and 16-bit grayscale and 48 and 64-bit color images is available in the Document and Medical Imaging toolkits.

To update a status bar or detect a user interrupt during execution of this function, refer to L_SetStatusCallback.

This function does not support 32-bit grayscale images. It returns the error code ERROR_GRAY32_UNSUPPORTED if a 32-bit grayscale image is passed to this function.

Required DLLs and Libraries


Win32, x64, Linux.

See Also




The following example loads a bitmap and applies the cubism function to it:

L_INT CubismBitmapExample(L_VOID) 
   L_INT nRet; 
   BITMAPHANDLE LeadBitmap;   /* Bitmap handle to hold the loaded image. */ 
   /* Load the bitmap, keeping the bits per pixel of the file */ 
   nRet = L_LoadBitmap(MAKE_IMAGE_PATH(TEXT("ImageProcessingDemo\\Image2.jpg")), &LeadBitmap, sizeof(BITMAPHANDLE), 0, ORDER_BGR, NULL, NULL); 
   if(nRet !=SUCCESS) 
      return nRet; 
   /* Apply cubism*/ 
   nRet = L_CubismBitmap(&LeadBitmap, 20,30,200,4500,RGB(255,0,0), CUB_COLOR | CUB_RECT | CUB_RAND); 
   if(nRet !=SUCCESS) 
      return nRet; 
   nRet = L_SaveBitmap(MAKE_IMAGE_PATH(TEXT("Result.BMP")), &LeadBitmap, FILE_BMP, 24, 0, NULL); 
   if(nRet !=SUCCESS) 
      return nRet; 
   //free bitmap  
   return SUCCESS; 

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