Loading and saving images

eLynx SDK supports loading and saving files easily. It's based on an architecture with plugins for encoding en decoding image file formats.

First you have to register once all plugins:

#include <elx/image/ImageFileManager.h>

// relative path where to look for image file format plugins
bool bSuccess = the_ImageFileManager.Register(PATH_BASE_PLUGIN);

// if there is an assertion here, you've got a problem loading plugins
// check pluginsPath path value.
// you must have plugin files in relative path from exe : ./plugins/*.elxIFF
elxASSERT( bSuccess );

You can have look at Supported Image File Format plugins.

Loading a missing image:

cout << endl << "Load a missing file" << endl;
const char * filenameIn = "missing.tif";
cout << "Create an image from file: " << filenameIn;
ImageVariant image;
bool bSuccess = image.Load(filenameIn);

cout << (bSuccess? " successfull" : " failed") << endl;
cout << (image.IsValid() ? "VALID" : "INVALID");
cout << ", format " << elxToString( image.GetPixelFormat() );
cout << ", size " << image.GetWidth() << "x" << image.GetHeight() << "-" 
     << image.GetBitsPerPixel() << "bits" << endl;

Output:

Load a missing file
Create an image from file: missing.tif failed
INVALID, format Undefined, size 0x0-0bits

Loading an image with constructor:

cout << "Load with constructor" << endl;
const char * filenameIn = "../../datas/m31.jpg";
cout << "Create an image from file: " << filenameIn << endl;
ImageVariant image(filenameIn);

cout << (image.IsValid() ? "VALID" : "INVALID");
cout << ", format " << elxToString( image.GetPixelFormat() );
cout << ", size " << image.GetWidth() << "x" << image.GetHeight() << "-" 
     << image.GetBitsPerPixel() << "bits" << endl;

const char * filenameOut = "output/m31bis.png";
cout << "Save image with png format: " << filenameOut;
bool bSuccess = image.Save(filenameOut);
cout << " " << (bSuccess? "successfull" : "failed") << endl;

Output:

Load with constructor
Create an image from file: ../../datas/m31.jpg
VALID, format RGBub, size 1300x900-24bits
Save image with png format: output/m31bis.png successfull