ediblescience

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(6) measurement series for banana ripening: results

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(6) measurement series for banana ripening: results

[ediblescience]

(6) measurement series for banana ripening: results 

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(6) measurement series for banana ripening

The measurement series for the ripening process of a banana just started.

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(5) Another black fabric is used and the segmentation works perfectly. This material will be used on the baseplate for the following experiments.

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(5) A similiar problem with the segmentation algorithm appears when a black towel is used. The pattern on the towel is mistaken for banana area.

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(5) The reflection in the red circled area appears to be a problem as my segmentation algorithm does not work with. Because of its high rgb-values the area is misread as banana area. It means that the possibility to use the black painted board as the baseplate is ruled out.

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(5) I got myself a board and painted it black.

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(5) contrast on the baseplate

To determine the intensity I used white paper as the baseplate. As the segmentation-algorithm relies on a dark background I have to find a suitable black baseplate. In the following I am going to  show some the baseplate-types that have been tested.

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(4)  Light source (b) and white paper cladding. The light distribution shows a great improvement for light source (b). The intensity change has been decreased to less than 2 %.  Because of the better light distribution light source (b) will be used in the following.

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(4) Light source (b) with white paper cladding inside the chamber. The light distribution in the vertical direction is calculated in the following.

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(4) Light source (a) and white paper cladding. The light distribution shows a great improvement for light source (a). The intensity change has been decreased to less than 20 %.

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(4) Light source (a) and white paper cladding. The light distribution in the vertical direction is calculated in the following.

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(4) I decided to put some white paper on the walls of the box to improve the light distribution in the chamber because of the reflection properties of the paper. In the following the earlier distribution experiments are being repeated.

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For light source (b) the light intensity changes by about 30 % in the vertical direction, which is not satisfying still.

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(4) As for light source (a) the images of light source (b) has to be resized so the light source is not in the field of investigation. The distribution of the intensity in vertical direction will be determined in the following.

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(4) For light source (a) the light intensity changes by more than 50 % in the vertical direction, which is unacceptable. Therefore I am going to try another light source.