Liber secundus super sententias secundum ([Reprod.]) / explicit Landulfum de Neapoli,...

Collection : Italian books before 1601 ; 440.1

Epistola ad Emanuelem Rhome gubernatorem de ritu et moribus Indorum dequem ejus potentia divitiis et excellentia ([Reprod.])

[Lettre du Prêtre Jean (latin). 1495-1500]

[Quodlibet de veritate fraternitatis rosarii seu psalterii Mariae virginis] ([Reprod.]) / [par Michael Franciscus de Insulis]

Collection : French books before 1601 ; 298.2

White under Black. Works from the Imperceptible / 2. Mar Arza: Readings and Consumption...

In the works of Mar Arza we perceive a sustained concern with lines of writing on surfaces. Earlyon, she altered the pages and letters of old books. More recently she has intervened in the lettersand the blank spaces on all kinds of printed paper — savings books, electricity bills, medical referrals, calendar pages, lottery tickets...

Allegoriae poeticae : seu de veritate expositione poeticarum fabularum libri quatuor Alberico londonensi authore nusquam antea impressi ([Reprod.])

Collection : French books before 1601 ; 107.2

P. Fausti Andrelini Foroliviensis hecatodistichon ([Reprod.]) / Joanne Vatello castigatore & paraphraste

Collection : French books before 1601 ; 23.6

L'Endimion de Gombauld ([Reprod.])

Collection : French books 1601-1700 ; 67.2

L'amaranthe de Gombauld : pastorale ([Reprod.])

Collection : French books 1601-1700 ; 66.4

Les épigrammes de Gombauld ([Reprod.])

Collection : French books 1601-1700 ; 66.5

Les poésies de Gombauld ([Reprod.])

Collection : French books 1601-1700 ; 66.6

Ad summum pontificem Innocentium papam octavum oratio ([Reprod.])

Collection : Italian books before 1601 ; 459.4

De bello Italico adversus Gothos ([Reprod.])

Collection : Italian books before 1601 ; 411.3

Libro de la guerra de Ghotti ([Reprod.]) / composto da M. Leonardo Aretino in lingua latina ; et fatto volgare da Lodovico Petroni,...

Collection : Italian books before 1601 ; 65.6

Measuring irregularities and surface defects from printed patterns

Quality inspection and assurance is a veryimportant step when today's products are sold to markets. As products are produced in vast quantities, the interest to automate quality inspection tasks has increased correspondingly. Quality inspection tasks usuallyrequire the detection of deficiencies, defined as irregularities in this thesis. Objects containing regular patterns appear quite frequently on certain industries and science, e.g. half-tone raster patterns in the printing industry, crystal lattice structures in solid state physics and solder joints and components in the electronics industry. In this thesis, the problem of regular patterns and irregularities is described in analytical form and three different detection methods are proposed. All the methods are based on characteristics of Fourier transform to represent regular information compactly. Fourier transform enables the separation of regular and irregular parts of an image but the three methods presented are shown to differ in generality and computational complexity. Need to detect fine and sparse details is common in quality inspection tasks, e.g., locating smallfractures in components in the electronics industry or detecting tearing from paper samples in the printing industry. In this thesis, a general definition of such details is given by defining sufficient statistical properties in the histogram domain. The analytical definition allowsa quantitative comparison of methods designed for detail detection. Based on the definition, the utilisation of existing thresholding methodsis shown to be well motivated. Comparison of thresholding methods shows that minimum error thresholding outperforms other standard methods. The results are successfully applied to a paper printability and runnability inspection setup. Missing dots from a repeating raster pattern are detected from Heliotest strips and small surface defects from IGT picking papers.