Feature

Filter/Interface(s)

Header

Comments

Help Files

Video Add

LMVAdd.DLL - ILMVAdd, ILMVAddDisp

ILMVAdd.h

The add filter can be used for enhancing night vision or dropping more light on dark sources to clarify objects. The effect is performed in 2 ways, the first yields a frame rate divided by the number of added frames, while the other almost preserves the frame rate by using previous frames to output each sample. The output is of course not the same from the two methods. The filters functionality is exposed through both user and programming interfaces.

LTFILTERS.CHM

Video Auto Contrast

LMVAutoCont.dll - ILMVAutoCont

ILMVAutoCont.h

The Auto Contrast filter performs color leveling at the luminance (grayscale) level, introducing no color cast. It makes the dark values darker and the light values lighter, which automatically enhances shadows and brightens the video stream. It also maximizes the tonal range of the image and enhances the contrast and intensity using the image's histogram and a color distribution-based algorithm.

LTFILTERS.CHM

Video Auto Intensity

LMVAutoInt.dll - ILMVAutoInt

ILMVAutoInt.h

The Auto Intensity filter performs color leveling on the RGB channel (the sum of the R, G, and B channels), introducing no color cast.
It makes the dark values darker and the light values lighter, which automatically enhances shadows and brightens the video stream. It also maximizes the tonal range of the image and enhances the contrast and intensity using the image's histogram and a color distribution-based algorithm.

LTFILTERS.CHM

Video Auto Level

LMVAutoLvl.dll - ILMVAutoLvl

ILMVAutoLvl.h

The Auto Level filter performs color leveling on the individual R, G and B channels, treating each of the R, G and B channels as a separate entity, introducing no color cast.
It makes the dark values darker and the light values lighter, which automatically enhances shadows and brightens the video stream. It also maximizes the tonal range of the image and enhances the contrast and intensity using the image's histogram and a color distribution-based algorithm.

LTFILTERS.CHM

Video Callback

(evaluation)

LMVCalBk2.DLL- ILMVCalBk, ILMVCalBkDisp

ILMVCalBk2.h

The Video callback filter can be used to capture or change video data in a multimedia stream. For example, you can apply any of the LEADTOOLS Image processing filters on the frame, and then render the results.

LTFILTERS.CHM

Video Color

LMVClr.DLL - ILMVColor

ILMVClr.h

The Color filter provides the ability to change some color attributes of the streaming video. The filter can change the video brightness, contrast, hue, and saturation, in addition to an invert colors option. The above changes can be applied to a selected area (rectangle) only by changing the "Effect Area" attributes in the property page or using SetCropAttributes from the programming interface.

LTFILTERS.CHM

Video Color Replacement

LMVClrRp.DLL - LMVColorRep

ColorRep.h

The filter replaces a color with another color over the video stream. The filter uses the HSV color space.

LTFILTERS.CHM

Video Crop

(evaluation)

LMVCrop2.DLL - ILMVCrop, ILMVCropDisp

ILMVCrop2.h

The Crop filter is used to extract areas from a source movie, a graphical representation is provided to show and modify the desired rectangle position and size. The cropped rectangle can be as small as 1x1. The filter’s functionality is exposed through both user and programming interfaces.

LTFILTERS.CHM

Video Deblocking

LMVDblck.dll - ILMVDeblock

ILMVDblck.h

The deblocking filter is a DirectShow transform filter that performs deblocking on a video stream. The deblocking is applied to raw RGB data and is not related to a specific decoder output. The filter accepts block size and first block offset parameters to deblocking paths and the beginning of the blocked area. If the block size and first block offset do not match the blocks in the passed video sample, the filter is not expected to give satisfactory results. Two algorithms are currently offered to perform deblocking, 2-Lines and 4-Lines. The filter exposes its functionality through both user and programming interfaces.

LTFILTERS.CHM

Video Deinterlace

(evaluation)

LMVDeitr2.DLL - ILMVDeinterlace, ILMVDeinterlaceDisp

ILMVDeinterlace2.h

The deinterlace filter converts interlaced video to make it a progressive scan video.
Analog, interlaced video is what devices like VCRs, laserdiscs, and game consoles output.

LTFILTERS.CHM

Video Edge Enhance

LMVEdgEnh.dll - ILMVEdgEnh

ILMVEdgEnh.h

The edge enhancer filter is a DirectShow transform filter that performs edge enhancement on a video stream. The filter exposes its functionality through both user and programming interfaces.

LTFILTERS.CHM

Video Emboss

LMVEmbs.DLL - ILMVEmboss, ILMVEmbossDisp

ILMVEmboss.h

This filter offers embossing a video stream providing different parameters to control the effect. The effect can be applied to a selected area (rectangle) only by changing the "Effect Area" attributes in the property page or using SetCropAttributes from the programming interface.

LTFILTERS.CHM

Video Frame Controller

(evaluation)

LMVFramCtrl2.dll - ILMVFramCtrl

ILMVFramCtrl2.h

The Frame Rate Control filter provides the ability to change the frame rate of the passing video stream.

LTFILTERS.CHM

Video Gamma Correction

LMVGamma.DLL - ILMVGamma

ILMVGamma.h

This filter performs gamma correction to a video stream. Possible gamma values are between 1 and 500.

LTFILTERS.CHM

Video Histogram Equalize

(evaluation)

LMVHstg2.DLL - ILMVHistogEq

ILMVHstg2.h

This filter performs Histogram Equalization to a video stream. Equalization can be done for a single channel; Red, Green, or Blue, or for all channels; master.

LTFILTERS.CHM

Video Histogram View

LMVHstg.DLL - ILMVHistogVw

ILMVHstg.h

Histogram View filter draws the running histogram of a video stream in its property page. The filter also provides access to the histogram array through its programming interface. The histogram can be viewed for a single channel or for all channels.

LTFILTERS.CHM

Video EFX Aging

LMVMiscFX.dll - ILMVAging, ILMMCommon

LMVMiscFX.h

The EFX aging filter gives a movie the look and feel of an old style movie (Color or B&W).

LTFILTERS.CHM

Video EFX BumpMap

LMVMiscFX.dll - ILMVBumpMap, ILMMCommon

LMVMiscFX.h

The EFX bump map filter embeds the texture of an image or frame into the movie frames.

LTFILTERS.CHM

Video EFX Dizzy

LMVMiscFX.dll - ILMVDizzy, ILMMCommon

LMVMiscFX.h

The EFX dizzy filter rotates, zooms and blurs movie frames to create a dizziness-like effect.

LTFILTERS.CHM

Video EFX Glass Tile

LMVMiscFX.dll - ILMVGlassTile, ILMMCommon

LMVMiscFX.h

The EFX glass tile filter will create a stained glass effect on each movie frame.

LTFILTERS.CHM

Video EFX Lens

LMVMiscFX.dll - ILMVLens, ILMMCommon

LMVMiscFX.h

The EFX lens filter adds a fish eye-like effect to the movie.

LTFILTERS.CHM

Video EFX Maze

LMVMiscFX.dll - ILMVMaze, ILMMCommon

LMVMiscFX.h

The EFX maze filter distorts the movie into a crystal maze.

LTFILTERS.CHM

Video EFX Rain

LMVMiscFX.dll - ILMVRain, ILMMCommon

LMVMiscFX.h

The EFX rain filter adds rain drops to the video.

LTFILTERS.CHM

Video EFX Fire

LMVMtnFX.dll - ILMVFire, ILMMCommon

LMVMtnFX.h

The EFX fire filter draws flames around a moving object.

LTFILTERS.CHM

Video EFX Ghost

LMVMtnFX.dll - ILMVGhost, ILMMCommon

LMVMtnFX.h

The EFX ghost filter makes moving objects invisible.

LTFILTERS.CHM

Video EFX Hologram

LMVMtnFX.dll - ILMVHologram, ILMMCommon

LMVMtnFX.h

The EFX hologram filter draws a holographic-like shadow of a moving object.

LTFILTERS.CHM

Video EFX Lightning

LMVMtnFX.dll - ILMVLightning, ILMMCommon

LMVMtnFX.h

The EFX lightning filter draws lightning sparks around a moving object.

LTFILTERS.CHM

Video EFX Motion Blur

LMVMtnFX.dll - ILMVMotionBlur, ILMMCommon

LMVMtnFX.h

The EFX motion blur filter creates a motion blur effect for moving objects. It gives the appearance of a random glow around the motion.

LTFILTERS.CHM

Video EFX Motion Emboss

LMVMtnFX.dll - ILMVMotionEmboss, ILMMCommon

LMVMtnFX.h

The EFX motion emboss filter applies an Emboss effect to moving objects.

LTFILTERS.CHM

Video EFX Motion Mosaic

LMVMtnFX.dll - ILMVMotionMosaic, ILMMCommon

LMVMtnFX.h

The EFX motion mosaic filter applies a mosaic effect to moving objects.

LTFILTERS.CHM

Video EFX Motion Scan

LMVMtnFX.dll - ILMVMotionScan, ILMMCommon

LMVMtnFX.h

The EFX motion scan filter will scan one line per frame and draw it to the destination. This gives the effect of distorting the moving objects.

LTFILTERS.CHM

Video EFX Particles

LMVMtnFX.dll - ILMVParticles, ILMMCommon

LMVMtnFX.h

The EFX particles filter distorts an object, when it moves, into small particles. It then joins the particles to reform the object when it stops moving.

LTFILTERS.CHM

Video EFX Streak

LMVMtnFX.dll - ILMVStreak, ILMMCommon

LMVMtnFX.h

The EFX streak filter shows moving objects as they are traced in slow motion.

LTFILTERS.CHM

Video EFX Wave

LMVMtnFX.dll - ILMVWave, ILMMCommon

LMVMtnFX.h

The EFX wave filter makes waves around moving objects.

LTFILTERS.CHM

Video Mosaic

LMVMosc.DLL - ILMVMosaic, ILMVMosaicDisp

ILMVMosaic.h

Mosaic effect transforms any image into something that looks as though it were created by positioning a number of tiling elements, each of constant color and an approximate size. This filter applies the mosaic effect to a video stream with the ability to set the mosaic square size. The mosaic effect can be applied to a selected area (rectangle) only by changing the "Effect Area" attributes in the property page or using SetCropAttributes from the programming interface.

LTFILTERS.CHM

Video Motion Detection

(evaluation)

LMVMtnDet2.dll - ILMVMtnDet, ILMVMtnDetUserCallback

ILMVMtnDet2.h

The filter compares the current frame with the previous frame. Every time there is a difference between frames, the filter calls a user callback. You can programmatically find the rectangles where motion is detected.

LTFILTERS.CHM

RGB Converter

LMVRGBxf.DLL - ILMVConvRGB

ILMVRGB.h

This is an RGB color space converter that supports conversion between different RGB formats. The filter supports the following formats: RGB8 (gray and palettized), RGB565, RGB555, RGB24, and RGB32. The input or output format can be set to AUTO, to enable free negotiation with the up or down stream filter. The filter’s functionality is exposed through both user and programming interfaces.

LTFILTERS.CHM

Video Rotation

(evaluation)

LMVRot2.DLL - ILMVRotation

ILMVRot2.h

The Rotation filter enables rotating a video stream by the standard angles; 0, 90, 180, and 270 in addition to flip and reverse options. The filter’s functionality is exposed through both user and programming interfaces.

LTFILTERS.CHM

Video Resize

(evaluation)

LMVRsz2.DLL - ILMVResize

ILMVRsz2.h

The Resize filter is used to change the dimensions of a source movie; the result is a new media, with new dimensions and size. The resize filter offers three types of resizing algorithms; Resample, Bicubic interpolation, and Normal. The user interface, as will as the programming interface, friendly enable the selection of the filter parameters; Width, Height, Keep aspect ratio, etc. In addition to the ability to select any desired size through specifying the width and height, the user can select a ratio size (i.e. 2X, Normal, X/2, ...).

LTFILTERS.CHM

Video Text Overlay

(evaluation)

LMVTOvLy2.dll - ILMVTOvLy

ILMVTOvLy2.h

This is a DirectShow transform filter that performs text overlaying on a video stream. It supports a wide range of text options from font and wrapping to rotation and transparency. The filter exposes its functionality through both user and programming interfaces.

LTFILTERS.CHM

Video UnSharpMask

(evaluation)

LMVUsMsk2.dll - ILMVUshrpMsk

ILMVUsMsk2.h

The unsharp mask filter is a DirectShow transform filter that performs a sharpening effect on a video stream. The filter exposes its functionality through both user and programming interfaces. The processing time of the filter is high, so the filter will be slow, and low frame rate is expected. All the functionality in the filter’s property page is available via the programming interface of the filter.

LTFILTERS.CHM

Video Video Overlay

LMVVOvLy2.dll - ILMVVOvLy

ILMVVOvLy2.h

This is a DirectShow transform filter that enables overlaying video and images on a video stream

LTFILTERS.CHM

YUV Converter

LMVYUVxf.DLL - none

None

The YUV converter filter can accept a variety of YUV formats and convert them to RGB. No RGB input is accepted. Currently, neither a user interface is available nor a programming interface.

LTFILTERS.CHM

Still Image Reader

ltStlImgRd.dll - ILTStlImgRd

ILTStlImgRd.h

This filter allows DirectShow applications (such as Windows Media Player) to read a variety of still image file formats, including:

• Windows BMP

• Compuserve GIF

• TIFF

• PNG

• JPEG

• JPEG 2000

• LEAD CMP

• LEAD CMW (Wavelet)

• Targa TGA

• PCX

• And many more…

LTFILTERS.CHM

Still Image Writer

ltStlImgWrt.dll - ILTStlImgWrt

ILTStlImgWrt.h

This filter allows any DirectShow application (such as Windows Media Player) to save the video stream to a variety of different still image file formats, including:

• Windows BMP

• Compuserve GIF

• TIFF

• PNG

• JPEG

• JPEG 2000

• LEAD CMP

• LEAD CMW (Wavelet)

• Targa TGA

• PCX

• And many more…

LTFILTERS.CHM

Feature

Filter/Interface(s)

Header

Comments

Help Files

Audio Callback

LMACalBk.DLL- ILMACalBk, ILMACalBkDisp

ILMACalBk.h

The Audio callback filter can be used to capture or change audio in a multimedia stream.

LTFILTERS.CHM

Audio Chorus

LMAChrs.DLL - ILMAChorus, ILMAChorusDisp

ILMAChorus.h

The chorus filter can be used to add a chorus effect. The chorus effect makes one instrument sound like many instruments are being played. It adds some thickness to the sound.

LTFILTERS.CHM

Audio Detection

(evaluation)

LMADet2.DLL - ILMADet, ILMADetUserCallback

ILMADet2.h

The Audio Detection filter determines whether there is sound or not. The filter uses a silence threshold: every sound above this threshold is considered sound, everything below is considered silence.

LTFILTERS.CHM

Audio Echo

LMAEcho.DLL - ILMAEcho, ILMAEchoDisp

ILMAEcho.h

The echo filter can be used to add an echo effect. The echo effect reflects a sound wave back to its source with sufficient strength and time lag to be separately distinguished.

LTFILTERS.CHM

Audio Flanger

LMAFlng.DLL - ILMAFlanger, ILMAFlangerDisp

ILMAFlanger.h

The flanger filter can be used to add a flange effect. Flanging has a characteristic sound often described as a "whooshing" sound, similar to the sound of a jet plane flying overhead.

LTFILTERS.CHM

Audio Phaser

LMAPhase.DLL - ILMAPhaser, ILMAPhaserDisp

ILMAPhase.h

The phase filter can be used to add the distinctive phaser sound. This distinctive sound is obtained by creating one or more notches in the frequency domain that eliminate sounds at the notch frequencies. Notches are created by filtering the signal, and mixing the filter output with the input signal. The flanger, a specific type of phasing, also makes use of notches.

LTFILTERS.CHM

Audio Volume

LMAVol.DLL - ILMAVolume

ILMAVolume.h

The Audio Volume filter allows the user to change the volume of sound samples.

LTFILTERS.CHM

Audio VU Meter

LMAVUMeter.DLL - ILMAVUMeter, ILMAVUMeterDisp

ILMAVUMeter.h

The VU meter filter can be used to add a VU meter to an audio stream. The VU meter allows the user to retrieve left and right channel audio power levels. The filter can be used to monitor the output level of other filters placed before it in the stream.

LTFILTERS.CHM