A Scale-Space Toggle Operator for Image Transformations

Dorini, Leyza Baldo; Leite, Neucimar J.

doi:10.1142/s0219467813500228

Cited by 9 publications

(11 citation statements)

References 31 publications

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“…Mathematical morphology is an important theory in image processing and pattern recognition (Serra, 1988;Shavemaker et al, 2000;Soille, 2003;Dorini & Leite, 2007). Morphological operators have been widely used in different applications.…”

Section: Mathematical Morphologymentioning

confidence: 99%

Morphological enhancement of microscopy mineral image using opening‐ and closing‐based toggle operator

Bai

2013

Journal of Microscopy

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SummaryTo enhance unclear microscopy mineral images, an algorithm based on toggle operator using opening and closing is proposed in this paper. Firstly, the specified toggle operator using opening and closing through designing the selection rules is analysed. Secondly, after importing the multiscale theory into the specified toggle operator, useful mineral image features, especially the mineral details, are extracted using the multiscale theory-based toggle operator. Finally, the mineral image is enhanced through the strategy of enlarging the contrast between the extracted bright and dark image features. Experimental results on different types of mineral images verified that the proposed algorithm could effectively enhance mineral images and performed better than some other algorithms. The enhanced mineral image is clear and contains rich mineral details, whereas the grey scale distribution of the original mineral image is appropriately maintained. This would be useful for the further mineral analysis. Therefore, the proposed algorithm could be widely used for image-based mineral applications.

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Section: Mathematical Morphologymentioning

confidence: 99%

Morphological enhancement of microscopy mineral image using opening‐ and closing‐based toggle operator

Bai

2013

Journal of Microscopy

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“…In the following, we define a toggle operator with scalespace properties, named Self-dual Multiscale Morphological Toggle (SMMT) [14]. We use as primitives iterated versions of the scale dependent dilation and erosion, defined above.…”

Section: A Scale-space Toggle Operator For Image Simplificationmentioning

confidence: 99%

“…For varying scale, the SMMT obeys the necessary conditions to constitute a scale-space operator [14]. The monotonicity property holds when using as features image extrema, in contrast to other approaches that require the use of image maxima and minima separately [13]).…”

Section: Definition Ii3 (Self-dual Multiscale Morphological Toggle mentioning

confidence: 99%

Semiautomatic White Blood Cell Segmentation Based on Multiscale Analysis

Dorini

Minetto

Leite

2013

IEEE J. Biomed. Health Inform.

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This paper approaches novel methods to segment the nucleus and cytoplasm of white blood cells (WBC). This information is the basis to perform higher level tasks such as automatic differential counting, which plays an important role in the diagnosis of different diseases. We explore the image simplification and contour regularization resulting from the application of the Self-Dual Multiscale Morphological Toggle (SMMT), an operator with scale-space properties. To segment the nucleus, the image preprocessing with SMMT has shown to be essential to ensure the accuracy of two well-known image segmentations techniques, namely, watershed transform and Level Set methods. To identify the cytoplasm region, we propose two different schemes, based on granulometric analysis and on morphological transformations. The proposed methods have been successfully applied to a large number of images, showing promising segmentation and classification results for varying cell appearance and image quality, encouraging future works.

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“…Extracting and using these mineral features would be very useful for constructing the effective measure to quantify the clarity of mineral image. Morphological theory has been well used for feature extraction (Bai, ; Bai and Zhou, ; Bai et al, ; Dorini and Leite, ; Mukhopadhyay and Chanda, ; Serra, ; Soille, ). Mineral image features include mineral details and regions.…”

Section: Introductionmentioning

confidence: 99%

“…Mineral image features include mineral details and regions. In addition, sequentially combined morphological toggle (Bai and Zhou, ; Dorini and Leite, ; Serra, ) and top‐hat (Bai and Zhou, ; Bai et al, ; Dorini and Leite, ) based contrast operator could be well used to extract both the image details and regions (Bai, ), which may be well used to construct the effective clarity measure of mineral images.…”

Section: Introductionmentioning

confidence: 99%

Measure of microscopy mineral image clarity constructed using the sequentially combined toggle and top‐hat based contrast operator

Bai

2013

Microscopy Res & Technique

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Correctly and effectively quantifying the clarity of microscopy mineral image is important and useful to produce clear image for mineral analysis. To well quantify the clarity of mineral image, an effective measure constructed using the sequentially combined toggle and top-hat based contrast operator is proposed in this article. First, the sequentially combined toggle and top-hat based contrast operator is used to extract the effective features which represent the clarity of mineral image. Second, the multiscale clarity features corresponding to each scale are extracted. Finally, after combining the multiscale clarity features in one feature image, the mean value of the feature image is constructed as the measure of mineral image clarity. Because the sequentially combined toggle and top-hat based contrast operator could effectively extract the clarity features, the clarity features are directly used as the measure of image clarity. Therefore, the proposed measure is effective and reasonable. The experimental results on different types of microscopy mineral images verified the effective performance of the proposed measure.

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A Scale-Space Toggle Operator for Image Transformations

Cited by 9 publications

References 31 publications

Morphological enhancement of microscopy mineral image using opening‐ and closing‐based toggle operator

Morphological enhancement of microscopy mineral image using opening‐ and closing‐based toggle operator

Semiautomatic White Blood Cell Segmentation Based on Multiscale Analysis

Measure of microscopy mineral image clarity constructed using the sequentially combined toggle and top‐hat based contrast operator

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