Declaration

TIOParams = class;

Description

Provides access to the properties and meta-data of an image or video file, such as compression type, EXIF, text comments, bits per sample, samples per pixel, etc.
The properties for this class are set when loading an image or can be retrieved (without loading of the image) using LoadFromFile (excluding save-only formats, such as PDF, PS, etc).
You can modify these properties before saving your image (naturally this is only relevant to formats which ImageEn can save, which excludes EMF, WMF, CUR, etc).

Params are available for image objects:
◼TIEBitmap.Params (you must enable ParamsEnabled)
◼TIEMultiBitmap.Params

Or alternatively via the I/O components:
◼TImageEnIO.Params
◼TImageEnMIO.Params

Examples

// Convert a PNG to JPEG at 90% quality
ImageEnView1.IO.LoadFromFile('D:\image.png');
ImageEnView1.IO.Params.JPEG_Quality := 90;
ImageEnView1.IO.SaveToFile('D:\output.jpg');

// Save a TIFF with CMYK
ImageEnView1.IO.LoadFromFile('D:\image.tif');
ImageEnView1.IO.Params.TIFF_PhotometInterpret := ioTIFF_CMYK;
ImageEnView1.IO.SaveToFile('D:\image-cmyk.tif');

// Set color-mapped 256 colors
ImageEnView1.IO.Params.BitsPerSample := 8;
ImageEnView1.IO.Params.SamplesPerPixel := 1;

ImageEnView1.IO.Params.TIFF_Compression := ioTIFF_G4FAX;
ImageEnView1.IO.Params.BitsPerSample := 1;
ImageEnView1.IO.Params.SamplesPerPixel := 1;
ImageEnView1.IO.SaveToFile('D:\output.tif');

// Display the camera used to create an image
bmp := TIEBitmap.Create();
bmp.ParamsEnabled := True;
bmp.LoadFromFile( 'C:\CameraImage.jpeg' );
if bmp.Params.EXIF_Model <> '' then
  lblCamera.Caption := bmp.Params.EXIF_Model
else
  lblCamera.Caption := 'Unknown';
... Do something with bmp? ...
bmp.Free();

ImageEnView1.IO.Params.TIFF_Compression := ioTIFF_JPEG;
ImageEnView1.IO.Params.TIFF_JPEGQuality := 85;

General Methods and Properties

General

Loading Directives

Property Storage Handling

Meta-Data Methods and Properties

General EXIF Tags (for JPEG, TIFF, PNG and RAW)

Photographic EXIF Tags (for JPEG, TIFF, PNG and RAW)

GPS EXIF Tags (for JPEG, TIFF, PNG and RAW)

Windows EXIF Tags (for JPEG, TIFF, PNG and RAW)

IPTC Tags (for JPEG and TIFF)

Adobe XMP Info (for JPEG, TIFF, PNG and PSD)

Format-Specific Properties

Adobe PDF

Adobe PSD

AVI

BMP

BmpRaw (not for camera Raw files)

Camera Raw (Camera Digital Images)

Cursors

Dicom

GIF

Icons

IEN (ImageEn native image format with layers)

JPEG

JPEG 2000

MediaFile (AVI, MPEG, WMV, etc)

Heif, WebP and Microsoft HD Photos/JPEG XR (WDP/JXR/HDP)

PNG

PostScript (PS)

Scalable Vector Graphics (SVG)

TIFF

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