To generate the manipulated photos, we applied each of the five manipulation types to six of the ten photos, creating six versions of each manipulation for a total of 30 manipulated photos.
The dotted horizontal lines on the bars represent chance performance for each manipulation type from the results of the Monte Carlo simulation.
One possibility is that the five categories of manipulation type introduced different amounts of change between the original and manipulated versions of the images.
The graphs show the mean values for each of the five categories of manipulation type.
To check this, we calculated the mean proportion of correct detections, localizations, and Delta-E values for each of the five categories of manipulation type.
A future investigation using a wider range of stimuli where subjects see more than one of each manipulation type might consider whether there is an interaction between Delta-E and manipulation type.
We used a within-subjects design in which each person viewed a series of ten photos, half of which had one of five manipulation types applied, and half of which were original, non-manipulated photos.
Combination of semantic and syntactic manipulation: This type of modification can result in VMI failure.
As manipulation of type of work was out of question, the possibility that stall managers unconsciously took behavioural characteristics into account when allocating horses to different types of work cannot be excluded.
Figure 1 shows examples of the five manipulation types, and higher resolution versions of these images, as well as other stimuli examples, appear in Additional file 1. Fig. 1 Samples of manipulated photos.
The positioning tolerance of the micromanipulation varies with the size of the objects under manipulation and the type of manipulation.
