Dectecting and extracting pictures in a 1-layer image - photoshop

Question

I have an image which includes some pictures (of different sizes here and there) over a solid white background, all in 1 layer.
Can I isolate/extract all the pictures with photoshop ?
Thank you in advance,

Answer 1

Yes and no. Working out where each of the individual images are would be quite difficult (and could involve a slow complex process of scanning each pixel)
But there is a way around it! Without seeing what these images look like, we assume that
The overall image is all one layer.
The individual images are rectangular
The individual images do not contain any white on the border
With that you can select magic wand in the top left, invert the selection and cut the images out.
//select top left hand corner
magicWand(0,0);
// inverse selection
activeDocument.selection.invert();
//copy image
activeDocument.selection.cut();
function magicWand(x,y)
{
var id4109 = charIDToTypeID( "setd" );
var desc623 = new ActionDescriptor();
var id4110 = charIDToTypeID( "null" );
var ref398 = new ActionReference();
var id4111 = charIDToTypeID( "Chnl" );
var id4112 = charIDToTypeID( "fsel" );
ref398.putProperty( id4111, id4112 );
desc623.putReference( id4110, ref398 );
var id4113 = charIDToTypeID( "T " );
var desc624 = new ActionDescriptor();
var id4114 = charIDToTypeID( "Hrzn" );
var id4115 = charIDToTypeID( "#Pxl" );
desc624.putUnitDouble( id4114, id4115, x );
var id4116 = charIDToTypeID( "Vrtc" );
var id4117 = charIDToTypeID( "#Pxl" );
desc624.putUnitDouble( id4116, id4117, y );
var id4118 = charIDToTypeID( "Pnt " );
desc623.putObject( id4113, id4118, desc624 );
var id4119 = charIDToTypeID( "Tlrn" );
desc623.putInteger( id4119, 0 );
executeAction( id4109, desc623, DialogModes.NO );
}